mirror of https://github.com/grpc/grpc.git
Jan Tattermusch
9 years ago
commit
d8fc860674
166 changed files with 2986 additions and 1225 deletions
@ -1,56 +0,0 @@ |
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/*
|
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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|
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#ifndef GRPC_SUPPORT_CANCELLABLE_PLATFORM_H |
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#define GRPC_SUPPORT_CANCELLABLE_PLATFORM_H |
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#include <grpc/support/atm.h> |
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#include <grpc/support/sync.h> |
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struct gpr_cancellable_list_ { |
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/* a doubly-linked list on cancellable's waiters queue */ |
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struct gpr_cancellable_list_ *next; |
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struct gpr_cancellable_list_ *prev; |
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/* The following two fields are arguments to gpr_cv_cancellable_wait() */ |
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gpr_mu *mu; |
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gpr_cv *cv; |
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}; |
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|
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/* Internal definition of gpr_cancellable. */ |
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typedef struct { |
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gpr_mu mu; /* protects waiters and modifications to cancelled */ |
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gpr_atm cancelled; |
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struct gpr_cancellable_list_ waiters; |
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} gpr_cancellable; |
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#endif /* GRPC_SUPPORT_CANCELLABLE_PLATFORM_H */ |
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@ -0,0 +1,438 @@ |
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/*
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
||||
* modification, are permitted provided that the following conditions are |
||||
* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
||||
* notice, this list of conditions and the following disclaimer. |
||||
* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
||||
* in the documentation and/or other materials provided with the |
||||
* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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|
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/* FIXME: "posix" files shouldn't be depending on _GNU_SOURCE */ |
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#ifndef _GNU_SOURCE |
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#define _GNU_SOURCE |
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#endif |
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#include <grpc/support/port_platform.h> |
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#ifdef GPR_POSIX_SOCKET |
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#include "src/core/iomgr/udp_server.h" |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <limits.h> |
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#include <netinet/in.h> |
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#include <netinet/tcp.h> |
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#include <string.h> |
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#include <sys/socket.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include <sys/un.h> |
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#include <unistd.h> |
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#include "src/core/iomgr/fd_posix.h" |
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#include "src/core/iomgr/pollset_posix.h" |
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#include "src/core/iomgr/resolve_address.h" |
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#include "src/core/iomgr/sockaddr_utils.h" |
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#include "src/core/iomgr/socket_utils_posix.h" |
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#include "src/core/support/string.h" |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include <grpc/support/sync.h> |
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#include <grpc/support/string_util.h> |
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#include <grpc/support/time.h> |
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#define INIT_PORT_CAP 2 |
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/* one listening port */ |
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typedef struct { |
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int fd; |
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grpc_fd *emfd; |
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grpc_udp_server *server; |
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union { |
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gpr_uint8 untyped[GRPC_MAX_SOCKADDR_SIZE]; |
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struct sockaddr sockaddr; |
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struct sockaddr_un un; |
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} addr; |
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int addr_len; |
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grpc_iomgr_closure read_closure; |
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grpc_iomgr_closure destroyed_closure; |
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grpc_udp_server_read_cb read_cb; |
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} server_port; |
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static void unlink_if_unix_domain_socket(const struct sockaddr_un *un) { |
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struct stat st; |
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if (stat(un->sun_path, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) { |
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unlink(un->sun_path); |
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} |
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} |
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/* the overall server */ |
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struct grpc_udp_server { |
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grpc_udp_server_cb cb; |
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void *cb_arg; |
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gpr_mu mu; |
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gpr_cv cv; |
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/* active port count: how many ports are actually still listening */ |
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size_t active_ports; |
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/* destroyed port count: how many ports are completely destroyed */ |
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size_t destroyed_ports; |
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/* is this server shutting down? (boolean) */ |
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int shutdown; |
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/* all listening ports */ |
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server_port *ports; |
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size_t nports; |
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size_t port_capacity; |
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/* shutdown callback */ |
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void (*shutdown_complete)(void *); |
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void *shutdown_complete_arg; |
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/* all pollsets interested in new connections */ |
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grpc_pollset **pollsets; |
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/* number of pollsets in the pollsets array */ |
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size_t pollset_count; |
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}; |
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grpc_udp_server *grpc_udp_server_create(void) { |
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grpc_udp_server *s = gpr_malloc(sizeof(grpc_udp_server)); |
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gpr_mu_init(&s->mu); |
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gpr_cv_init(&s->cv); |
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s->active_ports = 0; |
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s->destroyed_ports = 0; |
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s->shutdown = 0; |
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s->cb = NULL; |
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s->cb_arg = NULL; |
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s->ports = gpr_malloc(sizeof(server_port) * INIT_PORT_CAP); |
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s->nports = 0; |
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s->port_capacity = INIT_PORT_CAP; |
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return s; |
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} |
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static void finish_shutdown(grpc_udp_server *s) { |
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s->shutdown_complete(s->shutdown_complete_arg); |
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gpr_mu_destroy(&s->mu); |
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gpr_cv_destroy(&s->cv); |
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gpr_free(s->ports); |
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gpr_free(s); |
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} |
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static void destroyed_port(void *server, int success) { |
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grpc_udp_server *s = server; |
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gpr_mu_lock(&s->mu); |
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s->destroyed_ports++; |
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if (s->destroyed_ports == s->nports) { |
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gpr_mu_unlock(&s->mu); |
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finish_shutdown(s); |
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} else { |
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gpr_mu_unlock(&s->mu); |
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} |
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} |
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static void dont_care_about_shutdown_completion(void *ignored) {} |
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/* called when all listening endpoints have been shutdown, so no further
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events will be received on them - at this point it's safe to destroy |
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things */ |
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static void deactivated_all_ports(grpc_udp_server *s) { |
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size_t i; |
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/* delete ALL the things */ |
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gpr_mu_lock(&s->mu); |
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if (!s->shutdown) { |
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gpr_mu_unlock(&s->mu); |
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return; |
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} |
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if (s->nports) { |
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for (i = 0; i < s->nports; i++) { |
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server_port *sp = &s->ports[i]; |
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if (sp->addr.sockaddr.sa_family == AF_UNIX) { |
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unlink_if_unix_domain_socket(&sp->addr.un); |
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} |
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sp->destroyed_closure.cb = destroyed_port; |
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sp->destroyed_closure.cb_arg = s; |
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grpc_fd_orphan(sp->emfd, &sp->destroyed_closure, "udp_listener_shutdown"); |
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} |
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gpr_mu_unlock(&s->mu); |
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} else { |
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gpr_mu_unlock(&s->mu); |
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finish_shutdown(s); |
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} |
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} |
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void grpc_udp_server_destroy( |
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grpc_udp_server *s, void (*shutdown_complete)(void *shutdown_complete_arg), |
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void *shutdown_complete_arg) { |
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size_t i; |
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gpr_mu_lock(&s->mu); |
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GPR_ASSERT(!s->shutdown); |
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s->shutdown = 1; |
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s->shutdown_complete = shutdown_complete |
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? shutdown_complete |
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: dont_care_about_shutdown_completion; |
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s->shutdown_complete_arg = shutdown_complete_arg; |
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/* shutdown all fd's */ |
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if (s->active_ports) { |
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for (i = 0; i < s->nports; i++) { |
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grpc_fd_shutdown(s->ports[i].emfd); |
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} |
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gpr_mu_unlock(&s->mu); |
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} else { |
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gpr_mu_unlock(&s->mu); |
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deactivated_all_ports(s); |
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} |
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} |
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/* Prepare a recently-created socket for listening. */ |
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static int prepare_socket(int fd, const struct sockaddr *addr, int addr_len) { |
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struct sockaddr_storage sockname_temp; |
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socklen_t sockname_len; |
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int get_local_ip; |
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int rc; |
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if (fd < 0) { |
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goto error; |
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} |
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get_local_ip = 1; |
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rc = setsockopt(fd, IPPROTO_IP, IP_PKTINFO, |
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&get_local_ip, sizeof(get_local_ip)); |
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if (rc == 0 && addr->sa_family == AF_INET6) { |
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rc = setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, |
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&get_local_ip, sizeof(get_local_ip)); |
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} |
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if (bind(fd, addr, addr_len) < 0) { |
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char *addr_str; |
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grpc_sockaddr_to_string(&addr_str, addr, 0); |
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gpr_log(GPR_ERROR, "bind addr=%s: %s", addr_str, strerror(errno)); |
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gpr_free(addr_str); |
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goto error; |
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} |
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sockname_len = sizeof(sockname_temp); |
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if (getsockname(fd, (struct sockaddr *)&sockname_temp, &sockname_len) < 0) { |
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goto error; |
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} |
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return grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); |
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error: |
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if (fd >= 0) { |
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close(fd); |
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} |
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return -1; |
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} |
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/* event manager callback when reads are ready */ |
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static void on_read(void *arg, int success) { |
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server_port *sp = arg; |
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if (success == 0) { |
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gpr_mu_lock(&sp->server->mu); |
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if (0 == --sp->server->active_ports) { |
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gpr_mu_unlock(&sp->server->mu); |
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deactivated_all_ports(sp->server); |
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} else { |
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gpr_mu_unlock(&sp->server->mu); |
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} |
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return; |
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} |
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/* Tell the registered callback that data is available to read. */ |
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GPR_ASSERT(sp->read_cb); |
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sp->read_cb(sp->fd, sp->server->cb, sp->server->cb_arg); |
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|
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/* Re-arm the notification event so we get another chance to read. */ |
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grpc_fd_notify_on_read(sp->emfd, &sp->read_closure); |
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} |
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|
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static int add_socket_to_server(grpc_udp_server *s, int fd, |
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const struct sockaddr *addr, int addr_len, |
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grpc_udp_server_read_cb read_cb) { |
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server_port *sp; |
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int port; |
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char *addr_str; |
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char *name; |
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port = prepare_socket(fd, addr, addr_len); |
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if (port >= 0) { |
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grpc_sockaddr_to_string(&addr_str, (struct sockaddr *)&addr, 1); |
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gpr_asprintf(&name, "udp-server-listener:%s", addr_str); |
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gpr_mu_lock(&s->mu); |
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GPR_ASSERT(!s->cb && "must add ports before starting server"); |
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/* append it to the list under a lock */ |
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if (s->nports == s->port_capacity) { |
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s->port_capacity *= 2; |
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s->ports = gpr_realloc(s->ports, sizeof(server_port) * s->port_capacity); |
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} |
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sp = &s->ports[s->nports++]; |
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sp->server = s; |
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sp->fd = fd; |
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sp->emfd = grpc_fd_create(fd, name); |
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memcpy(sp->addr.untyped, addr, addr_len); |
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sp->addr_len = addr_len; |
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sp->read_cb = read_cb; |
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GPR_ASSERT(sp->emfd); |
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gpr_mu_unlock(&s->mu); |
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} |
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|
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return port; |
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} |
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int grpc_udp_server_add_port(grpc_udp_server *s, const void *addr, |
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int addr_len, grpc_udp_server_read_cb read_cb) { |
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int allocated_port1 = -1; |
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int allocated_port2 = -1; |
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unsigned i; |
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int fd; |
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grpc_dualstack_mode dsmode; |
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struct sockaddr_in6 addr6_v4mapped; |
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struct sockaddr_in wild4; |
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struct sockaddr_in6 wild6; |
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struct sockaddr_in addr4_copy; |
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struct sockaddr *allocated_addr = NULL; |
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struct sockaddr_storage sockname_temp; |
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socklen_t sockname_len; |
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int port; |
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|
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if (((struct sockaddr *)addr)->sa_family == AF_UNIX) { |
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unlink_if_unix_domain_socket(addr); |
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} |
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|
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/* Check if this is a wildcard port, and if so, try to keep the port the same
|
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as some previously created listener. */ |
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if (grpc_sockaddr_get_port(addr) == 0) { |
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for (i = 0; i < s->nports; i++) { |
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sockname_len = sizeof(sockname_temp); |
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if (0 == getsockname(s->ports[i].fd, (struct sockaddr *)&sockname_temp, |
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&sockname_len)) { |
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port = grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); |
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if (port > 0) { |
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allocated_addr = malloc(addr_len); |
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memcpy(allocated_addr, addr, addr_len); |
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grpc_sockaddr_set_port(allocated_addr, port); |
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addr = allocated_addr; |
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break; |
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} |
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} |
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} |
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} |
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|
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if (grpc_sockaddr_to_v4mapped(addr, &addr6_v4mapped)) { |
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addr = (const struct sockaddr *)&addr6_v4mapped; |
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addr_len = sizeof(addr6_v4mapped); |
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} |
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|
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/* Treat :: or 0.0.0.0 as a family-agnostic wildcard. */ |
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if (grpc_sockaddr_is_wildcard(addr, &port)) { |
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grpc_sockaddr_make_wildcards(port, &wild4, &wild6); |
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|
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/* Try listening on IPv6 first. */ |
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addr = (struct sockaddr *)&wild6; |
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addr_len = sizeof(wild6); |
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fd = grpc_create_dualstack_socket(addr, SOCK_DGRAM, IPPROTO_UDP, &dsmode); |
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allocated_port1 = add_socket_to_server(s, fd, addr, addr_len, read_cb); |
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if (fd >= 0 && dsmode == GRPC_DSMODE_DUALSTACK) { |
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goto done; |
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} |
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|
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/* If we didn't get a dualstack socket, also listen on 0.0.0.0. */ |
||||
if (port == 0 && allocated_port1 > 0) { |
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grpc_sockaddr_set_port((struct sockaddr *)&wild4, allocated_port1); |
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} |
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addr = (struct sockaddr *)&wild4; |
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addr_len = sizeof(wild4); |
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} |
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|
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fd = grpc_create_dualstack_socket(addr, SOCK_DGRAM, IPPROTO_UDP, &dsmode); |
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if (fd < 0) { |
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gpr_log(GPR_ERROR, "Unable to create socket: %s", strerror(errno)); |
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} |
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if (dsmode == GRPC_DSMODE_IPV4 && |
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grpc_sockaddr_is_v4mapped(addr, &addr4_copy)) { |
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addr = (struct sockaddr *)&addr4_copy; |
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addr_len = sizeof(addr4_copy); |
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} |
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allocated_port2 = add_socket_to_server(s, fd, addr, addr_len, read_cb); |
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|
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done: |
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gpr_free(allocated_addr); |
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return allocated_port1 >= 0 ? allocated_port1 : allocated_port2; |
||||
} |
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|
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int grpc_udp_server_get_fd(grpc_udp_server *s, unsigned index) { |
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return (index < s->nports) ? s->ports[index].fd : -1; |
||||
} |
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|
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void grpc_udp_server_start(grpc_udp_server *s, grpc_pollset **pollsets, |
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size_t pollset_count, |
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grpc_udp_server_cb new_transport_cb, void *cb_arg) { |
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size_t i, j; |
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GPR_ASSERT(new_transport_cb); |
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gpr_mu_lock(&s->mu); |
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GPR_ASSERT(!s->cb); |
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GPR_ASSERT(s->active_ports == 0); |
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s->cb = new_transport_cb; |
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s->cb_arg = cb_arg; |
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s->pollsets = pollsets; |
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for (i = 0; i < s->nports; i++) { |
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for (j = 0; j < pollset_count; j++) { |
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grpc_pollset_add_fd(pollsets[j], s->ports[i].emfd); |
||||
} |
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s->ports[i].read_closure.cb = on_read; |
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s->ports[i].read_closure.cb_arg = &s->ports[i]; |
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grpc_fd_notify_on_read(s->ports[i].emfd, &s->ports[i].read_closure); |
||||
s->active_ports++; |
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} |
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gpr_mu_unlock(&s->mu); |
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} |
||||
|
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/* TODO(rjshade): Add a test for this method. */ |
||||
void grpc_udp_server_write(server_port *sp, const char *buffer, size_t buf_len, |
||||
const struct sockaddr *peer_address) { |
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int rc; |
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rc = sendto(sp->fd, buffer, buf_len, 0, peer_address, sizeof(peer_address)); |
||||
if (rc < 0) { |
||||
gpr_log(GPR_ERROR, "Unable to send data: %s", strerror(errno)); |
||||
} |
||||
} |
||||
|
||||
#endif |
||||
@ -0,0 +1,85 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015, Google Inc. |
||||
* All rights reserved. |
||||
* |
||||
* Redistribution and use in source and binary forms, with or without |
||||
* modification, are permitted provided that the following conditions are |
||||
* met: |
||||
* |
||||
* * Redistributions of source code must retain the above copyright |
||||
* notice, this list of conditions and the following disclaimer. |
||||
* * Redistributions in binary form must reproduce the above |
||||
* copyright notice, this list of conditions and the following disclaimer |
||||
* in the documentation and/or other materials provided with the |
||||
* distribution. |
||||
* * Neither the name of Google Inc. nor the names of its |
||||
* contributors may be used to endorse or promote products derived from |
||||
* this software without specific prior written permission. |
||||
* |
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H |
||||
#define GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H |
||||
|
||||
#include "src/core/iomgr/endpoint.h" |
||||
|
||||
/* Forward decl of grpc_udp_server */ |
||||
typedef struct grpc_udp_server grpc_udp_server; |
||||
|
||||
/* New server callback: ep is the newly connected connection */ |
||||
typedef void (*grpc_udp_server_cb)(void *arg, grpc_endpoint *ep); |
||||
|
||||
/* Called when data is available to read from the socket. */ |
||||
typedef void (*grpc_udp_server_read_cb)(int fd, |
||||
grpc_udp_server_cb new_transport_cb, |
||||
void *cb_arg); |
||||
|
||||
/* Create a server, initially not bound to any ports */ |
||||
grpc_udp_server *grpc_udp_server_create(void); |
||||
|
||||
/* Start listening to bound ports */ |
||||
void grpc_udp_server_start(grpc_udp_server *server, grpc_pollset **pollsets, |
||||
size_t pollset_count, grpc_udp_server_cb cb, |
||||
void *cb_arg); |
||||
|
||||
int grpc_udp_server_get_fd(grpc_udp_server *s, unsigned index); |
||||
|
||||
/* Add a port to the server, returning port number on success, or negative
|
||||
on failure. |
||||
|
||||
The :: and 0.0.0.0 wildcard addresses are treated identically, accepting |
||||
both IPv4 and IPv6 connections, but :: is the preferred style. This usually |
||||
creates one socket, but possibly two on systems which support IPv6, |
||||
but not dualstack sockets. */ |
||||
|
||||
/* TODO(ctiller): deprecate this, and make grpc_udp_server_add_ports to handle
|
||||
all of the multiple socket port matching logic in one place */ |
||||
int grpc_udp_server_add_port(grpc_udp_server *s, const void *addr, int addr_len, |
||||
grpc_udp_server_read_cb read_cb); |
||||
|
||||
void grpc_udp_server_destroy(grpc_udp_server *server, |
||||
void (*shutdown_done)(void *shutdown_done_arg), |
||||
void *shutdown_done_arg); |
||||
|
||||
/* Write the contents of buffer to the underlying UDP socket. */ |
||||
/*
|
||||
void grpc_udp_server_write(grpc_udp_server *s, |
||||
const char *buffer, |
||||
int buf_len, |
||||
const struct sockaddr* to); |
||||
*/ |
||||
|
||||
#endif /* GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H */ |
||||
@ -1,157 +0,0 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015, Google Inc. |
||||
* All rights reserved. |
||||
* |
||||
* Redistribution and use in source and binary forms, with or without |
||||
* modification, are permitted provided that the following conditions are |
||||
* met: |
||||
* |
||||
* * Redistributions of source code must retain the above copyright |
||||
* notice, this list of conditions and the following disclaimer. |
||||
* * Redistributions in binary form must reproduce the above |
||||
* copyright notice, this list of conditions and the following disclaimer |
||||
* in the documentation and/or other materials provided with the |
||||
* distribution. |
||||
* * Neither the name of Google Inc. nor the names of its |
||||
* contributors may be used to endorse or promote products derived from |
||||
* this software without specific prior written permission. |
||||
* |
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
* |
||||
*/ |
||||
|
||||
/* Implementation for gpr_cancellable */ |
||||
|
||||
#include <grpc/support/atm.h> |
||||
#include <grpc/support/sync.h> |
||||
#include <grpc/support/time.h> |
||||
|
||||
void gpr_cancellable_init(gpr_cancellable *c) { |
||||
gpr_mu_init(&c->mu); |
||||
c->cancelled = 0; |
||||
c->waiters.next = &c->waiters; |
||||
c->waiters.prev = &c->waiters; |
||||
c->waiters.mu = NULL; |
||||
c->waiters.cv = NULL; |
||||
} |
||||
|
||||
void gpr_cancellable_destroy(gpr_cancellable *c) { gpr_mu_destroy(&c->mu); } |
||||
|
||||
int gpr_cancellable_is_cancelled(gpr_cancellable *c) { |
||||
return gpr_atm_acq_load(&c->cancelled) != 0; |
||||
} |
||||
|
||||
/* Threads in gpr_cv_cancellable_wait(cv, mu, ..., c) place themselves on a
|
||||
linked list c->waiters of gpr_cancellable_list_ before waiting on their |
||||
condition variables. They check for cancellation while holding *mu. Thus, |
||||
to wake a thread from gpr_cv_cancellable_wait(), it suffices to: |
||||
- set c->cancelled |
||||
- acquire and release *mu |
||||
- gpr_cv_broadcast(cv) |
||||
|
||||
However, gpr_cancellable_cancel() may not use gpr_mu_lock(mu), since the |
||||
caller may already hold *mu---a possible deadlock. (If we knew the caller |
||||
did not hold *mu, care would still be needed, because c->mu follows *mu in |
||||
the locking order, so *mu could not be acquired while holding c->mu---which |
||||
is needed to iterate over c->waiters.) |
||||
|
||||
Therefore, gpr_cancellable_cancel() uses gpr_mu_trylock() rather than |
||||
gpr_mu_lock(), and retries until either gpr_mu_trylock() succeeds or the |
||||
thread leaves gpr_cv_cancellable_wait() for other reasons. In the first |
||||
case, gpr_cancellable_cancel() removes the entry from the waiters list; in |
||||
the second, the waiting thread removes itself from the list. |
||||
|
||||
A one-entry cache of mutexes and condition variables processed is kept to |
||||
avoid doing the same work again and again if many threads are blocked in the |
||||
same place. However, it's important to broadcast on a condition variable if |
||||
the corresponding mutex has been locked successfully, even if the condition |
||||
variable has been signalled before. */ |
||||
|
||||
void gpr_cancellable_cancel(gpr_cancellable *c) { |
||||
if (!gpr_cancellable_is_cancelled(c)) { |
||||
int failures; |
||||
int backoff = 1; |
||||
do { |
||||
struct gpr_cancellable_list_ *l; |
||||
struct gpr_cancellable_list_ *nl; |
||||
gpr_mu *omu = 0; /* one-element cache of a processed gpr_mu */ |
||||
gpr_cv *ocv = 0; /* one-element cache of a processd gpr_cv */ |
||||
gpr_mu_lock(&c->mu); |
||||
gpr_atm_rel_store(&c->cancelled, 1); |
||||
failures = 0; |
||||
for (l = c->waiters.next; l != &c->waiters; l = nl) { |
||||
nl = l->next; |
||||
if (omu != l->mu) { |
||||
omu = l->mu; |
||||
if (gpr_mu_trylock(l->mu)) { |
||||
gpr_mu_unlock(l->mu); |
||||
l->next->prev = l->prev; /* remove *l from list */ |
||||
l->prev->next = l->next; |
||||
/* allow unconditional dequeue in gpr_cv_cancellable_wait() */ |
||||
l->next = l; |
||||
l->prev = l; |
||||
ocv = 0; /* force broadcast */ |
||||
} else { |
||||
failures++; |
||||
} |
||||
} |
||||
if (ocv != l->cv) { |
||||
ocv = l->cv; |
||||
gpr_cv_broadcast(l->cv); |
||||
} |
||||
} |
||||
gpr_mu_unlock(&c->mu); |
||||
if (failures != 0) { |
||||
if (backoff < 10) { |
||||
volatile int i; |
||||
for (i = 0; i != (1 << backoff); i++) { |
||||
} |
||||
backoff++; |
||||
} else { |
||||
gpr_event ev; |
||||
gpr_event_init(&ev); |
||||
gpr_event_wait( |
||||
&ev, gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), |
||||
gpr_time_from_micros(1000, GPR_TIMESPAN))); |
||||
} |
||||
} |
||||
} while (failures != 0); |
||||
} |
||||
} |
||||
|
||||
int gpr_cv_cancellable_wait(gpr_cv *cv, gpr_mu *mu, gpr_timespec abs_deadline, |
||||
gpr_cancellable *c) { |
||||
gpr_int32 timeout; |
||||
gpr_mu_lock(&c->mu); |
||||
timeout = gpr_cancellable_is_cancelled(c); |
||||
if (!timeout) { |
||||
struct gpr_cancellable_list_ le; |
||||
le.mu = mu; |
||||
le.cv = cv; |
||||
le.next = c->waiters.next; |
||||
le.prev = &c->waiters; |
||||
le.next->prev = ≤ |
||||
le.prev->next = ≤ |
||||
gpr_mu_unlock(&c->mu); |
||||
timeout = gpr_cv_wait(cv, mu, abs_deadline); |
||||
gpr_mu_lock(&c->mu); |
||||
le.next->prev = le.prev; |
||||
le.prev->next = le.next; |
||||
if (!timeout) { |
||||
timeout = gpr_cancellable_is_cancelled(c); |
||||
} |
||||
} |
||||
gpr_mu_unlock(&c->mu); |
||||
return timeout; |
||||
} |
||||
@ -0,0 +1,2 @@ |
||||
graft grpc |
||||
include commands.py |
||||
@ -0,0 +1,9 @@ |
||||
gRPC Python Health Checking |
||||
=========================== |
||||
|
||||
Reference package for GRPC Python health checking. |
||||
|
||||
Dependencies |
||||
------------ |
||||
|
||||
Depends on the `grpcio` package, available from PyPI via `pip install grpcio`. |
||||
@ -0,0 +1,80 @@ |
||||
# Copyright 2015, Google Inc. |
||||
# All rights reserved. |
||||
# |
||||
# Redistribution and use in source and binary forms, with or without |
||||
# modification, are permitted provided that the following conditions are |
||||
# met: |
||||
# |
||||
# * Redistributions of source code must retain the above copyright |
||||
# notice, this list of conditions and the following disclaimer. |
||||
# * Redistributions in binary form must reproduce the above |
||||
# copyright notice, this list of conditions and the following disclaimer |
||||
# in the documentation and/or other materials provided with the |
||||
# distribution. |
||||
# * Neither the name of Google Inc. nor the names of its |
||||
# contributors may be used to endorse or promote products derived from |
||||
# this software without specific prior written permission. |
||||
# |
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
"""Provides distutils command classes for the GRPC Python setup process.""" |
||||
|
||||
import distutils |
||||
import glob |
||||
import os |
||||
import os.path |
||||
import subprocess |
||||
import sys |
||||
|
||||
import setuptools |
||||
from setuptools.command import build_py |
||||
|
||||
|
||||
class BuildProtoModules(setuptools.Command): |
||||
"""Command to generate project *_pb2.py modules from proto files.""" |
||||
|
||||
description = '' |
||||
user_options = [] |
||||
|
||||
def initialize_options(self): |
||||
pass |
||||
|
||||
def finalize_options(self): |
||||
self.protoc_command = 'protoc' |
||||
self.grpc_python_plugin_command = distutils.spawn.find_executable( |
||||
'grpc_python_plugin') |
||||
|
||||
def run(self): |
||||
paths = [] |
||||
root_directory = os.getcwd() |
||||
for walk_root, directories, filenames in os.walk(root_directory): |
||||
for filename in filenames: |
||||
if filename.endswith('.proto'): |
||||
paths.append(os.path.join(walk_root, filename)) |
||||
command = [ |
||||
self.protoc_command, |
||||
'--plugin=protoc-gen-python-grpc={}'.format( |
||||
self.grpc_python_plugin_command), |
||||
'-I {}'.format(root_directory), |
||||
'--python_out={}'.format(root_directory), |
||||
'--python-grpc_out={}'.format(root_directory), |
||||
] + paths |
||||
subprocess.check_call(' '.join(command), cwd=root_directory, shell=True) |
||||
|
||||
|
||||
class BuildPy(build_py.build_py): |
||||
"""Custom project build command.""" |
||||
|
||||
def run(self): |
||||
self.run_command('build_proto_modules') |
||||
build_py.build_py.run(self) |
||||
@ -0,0 +1,30 @@ |
||||
# Copyright 2015, Google Inc. |
||||
# All rights reserved. |
||||
# |
||||
# Redistribution and use in source and binary forms, with or without |
||||
# modification, are permitted provided that the following conditions are |
||||
# met: |
||||
# |
||||
# * Redistributions of source code must retain the above copyright |
||||
# notice, this list of conditions and the following disclaimer. |
||||
# * Redistributions in binary form must reproduce the above |
||||
# copyright notice, this list of conditions and the following disclaimer |
||||
# in the documentation and/or other materials provided with the |
||||
# distribution. |
||||
# * Neither the name of Google Inc. nor the names of its |
||||
# contributors may be used to endorse or promote products derived from |
||||
# this software without specific prior written permission. |
||||
# |
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
|
||||
@ -0,0 +1,30 @@ |
||||
# Copyright 2015, Google Inc. |
||||
# All rights reserved. |
||||
# |
||||
# Redistribution and use in source and binary forms, with or without |
||||
# modification, are permitted provided that the following conditions are |
||||
# met: |
||||
# |
||||
# * Redistributions of source code must retain the above copyright |
||||
# notice, this list of conditions and the following disclaimer. |
||||
# * Redistributions in binary form must reproduce the above |
||||
# copyright notice, this list of conditions and the following disclaimer |
||||
# in the documentation and/or other materials provided with the |
||||
# distribution. |
||||
# * Neither the name of Google Inc. nor the names of its |
||||
# contributors may be used to endorse or promote products derived from |
||||
# this software without specific prior written permission. |
||||
# |
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
|
||||
@ -0,0 +1,30 @@ |
||||
# Copyright 2015, Google Inc. |
||||
# All rights reserved. |
||||
# |
||||
# Redistribution and use in source and binary forms, with or without |
||||
# modification, are permitted provided that the following conditions are |
||||
# met: |
||||
# |
||||
# * Redistributions of source code must retain the above copyright |
||||
# notice, this list of conditions and the following disclaimer. |
||||
# * Redistributions in binary form must reproduce the above |
||||
# copyright notice, this list of conditions and the following disclaimer |
||||
# in the documentation and/or other materials provided with the |
||||
# distribution. |
||||
# * Neither the name of Google Inc. nor the names of its |
||||
# contributors may be used to endorse or promote products derived from |
||||
# this software without specific prior written permission. |
||||
# |
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
|
||||
@ -0,0 +1,49 @@ |
||||
// Copyright 2015, Google Inc. |
||||
// All rights reserved. |
||||
// |
||||
// Redistribution and use in source and binary forms, with or without |
||||
// modification, are permitted provided that the following conditions are |
||||
// met: |
||||
// |
||||
// * Redistributions of source code must retain the above copyright |
||||
// notice, this list of conditions and the following disclaimer. |
||||
// * Redistributions in binary form must reproduce the above |
||||
// copyright notice, this list of conditions and the following disclaimer |
||||
// in the documentation and/or other materials provided with the |
||||
// distribution. |
||||
// * Neither the name of Google Inc. nor the names of its |
||||
// contributors may be used to endorse or promote products derived from |
||||
// this software without specific prior written permission. |
||||
// |
||||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
syntax = "proto3"; |
||||
|
||||
package grpc.health.v1alpha; |
||||
|
||||
message HealthCheckRequest { |
||||
string service = 1; |
||||
} |
||||
|
||||
message HealthCheckResponse { |
||||
enum ServingStatus { |
||||
UNKNOWN = 0; |
||||
SERVING = 1; |
||||
NOT_SERVING = 2; |
||||
} |
||||
ServingStatus status = 1; |
||||
} |
||||
|
||||
service Health { |
||||
rpc Check(HealthCheckRequest) returns (HealthCheckResponse); |
||||
} |
||||
@ -0,0 +1,129 @@ |
||||
# Copyright 2015, Google Inc. |
||||
# All rights reserved. |
||||
# |
||||
# Redistribution and use in source and binary forms, with or without |
||||
# modification, are permitted provided that the following conditions are |
||||
# met: |
||||
# |
||||
# * Redistributions of source code must retain the above copyright |
||||
# notice, this list of conditions and the following disclaimer. |
||||
# * Redistributions in binary form must reproduce the above |
||||
# copyright notice, this list of conditions and the following disclaimer |
||||
# in the documentation and/or other materials provided with the |
||||
# distribution. |
||||
# * Neither the name of Google Inc. nor the names of its |
||||
# contributors may be used to endorse or promote products derived from |
||||
# this software without specific prior written permission. |
||||
# |
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
"""Reference implementation for health checking in gRPC Python.""" |
||||
|
||||
import abc |
||||
import enum |
||||
import threading |
||||
|
||||
from grpc.health.v1alpha import health_pb2 |
||||
|
||||
|
||||
@enum.unique |
||||
class HealthStatus(enum.Enum): |
||||
"""Statuses for a service mirroring the reference health.proto's values.""" |
||||
UNKNOWN = health_pb2.HealthCheckResponse.UNKNOWN |
||||
SERVING = health_pb2.HealthCheckResponse.SERVING |
||||
NOT_SERVING = health_pb2.HealthCheckResponse.NOT_SERVING |
||||
|
||||
|
||||
class _HealthServicer(health_pb2.EarlyAdopterHealthServicer): |
||||
"""Servicer handling RPCs for service statuses.""" |
||||
|
||||
def __init__(self): |
||||
self._server_status_lock = threading.Lock() |
||||
self._server_status = {} |
||||
|
||||
def Check(self, request, context): |
||||
with self._server_status_lock: |
||||
if request.service not in self._server_status: |
||||
# TODO(atash): once the Python API has a way of setting the server |
||||
# status, bring us into conformance with the health check spec by |
||||
# returning the NOT_FOUND status here. |
||||
raise NotImplementedError() |
||||
else: |
||||
return health_pb2.HealthCheckResponse( |
||||
status=self._server_status[request.service].value) |
||||
|
||||
def set(service, status): |
||||
if not isinstance(status, HealthStatus): |
||||
raise TypeError('expected grpc.health.v1alpha.health.HealthStatus ' |
||||
'for argument `status` but got {}'.format(status)) |
||||
with self._server_status_lock: |
||||
self._server_status[service] = status |
||||
|
||||
|
||||
class HealthServer(health_pb2.EarlyAdopterHealthServer): |
||||
"""Interface for the reference gRPC Python health server.""" |
||||
__metaclass__ = abc.ABCMeta |
||||
|
||||
@abc.abstractmethod |
||||
def start(self): |
||||
raise NotImplementedError() |
||||
|
||||
@abc.abstractmethod |
||||
def stop(self): |
||||
raise NotImplementedError() |
||||
|
||||
@abc.abstractmethod |
||||
def set(self, service, status): |
||||
"""Set the status of the given service. |
||||
|
||||
Args: |
||||
service (str): service name of the service to set the reported status of |
||||
status (HealthStatus): status to set for the specified service |
||||
""" |
||||
raise NotImplementedError() |
||||
|
||||
|
||||
class _HealthServerImplementation(HealthServer): |
||||
"""Implementation for the reference gRPC Python health server.""" |
||||
|
||||
def __init__(self, server, servicer): |
||||
self._server = server |
||||
self._servicer = servicer |
||||
|
||||
def start(self): |
||||
self._server.start() |
||||
|
||||
def stop(self): |
||||
self._server.stop() |
||||
|
||||
def set(self, service, status): |
||||
self._servicer.set(service, status) |
||||
|
||||
|
||||
def create_Health_server(port, private_key=None, certificate_chain=None): |
||||
"""Get a HealthServer instance. |
||||
|
||||
Args: |
||||
port (int): port number passed through to health_pb2 server creation |
||||
routine. |
||||
private_key (str): to-be-created server's desired private key |
||||
certificate_chain (str): to-be-created server's desired certificate chain |
||||
|
||||
Returns: |
||||
An instance of HealthServer (conforming thus to |
||||
EarlyAdopterHealthServer and providing a method to set server status).""" |
||||
servicer = _HealthServicer() |
||||
server = health_pb2.early_adopter_create_Health_server( |
||||
servicer, port=port, private_key=private_key, |
||||
certificate_chain=certificate_chain) |
||||
return _HealthServerImplementation(server, servicer) |
||||
@ -0,0 +1,72 @@ |
||||
# Copyright 2015, Google Inc. |
||||
# All rights reserved. |
||||
# |
||||
# Redistribution and use in source and binary forms, with or without |
||||
# modification, are permitted provided that the following conditions are |
||||
# met: |
||||
# |
||||
# * Redistributions of source code must retain the above copyright |
||||
# notice, this list of conditions and the following disclaimer. |
||||
# * Redistributions in binary form must reproduce the above |
||||
# copyright notice, this list of conditions and the following disclaimer |
||||
# in the documentation and/or other materials provided with the |
||||
# distribution. |
||||
# * Neither the name of Google Inc. nor the names of its |
||||
# contributors may be used to endorse or promote products derived from |
||||
# this software without specific prior written permission. |
||||
# |
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
|
||||
"""Setup module for the GRPC Python package's optional health checking.""" |
||||
|
||||
import os |
||||
import os.path |
||||
import sys |
||||
|
||||
from distutils import core as _core |
||||
import setuptools |
||||
|
||||
# Ensure we're in the proper directory whether or not we're being used by pip. |
||||
os.chdir(os.path.dirname(os.path.abspath(__file__))) |
||||
|
||||
# Break import-style to ensure we can actually find our commands module. |
||||
import commands |
||||
|
||||
_PACKAGES = ( |
||||
setuptools.find_packages('.') |
||||
) |
||||
|
||||
_PACKAGE_DIRECTORIES = { |
||||
'': '.', |
||||
} |
||||
|
||||
_INSTALL_REQUIRES = ( |
||||
'grpcio>=0.10.0a0', |
||||
) |
||||
|
||||
_SETUP_REQUIRES = _INSTALL_REQUIRES |
||||
|
||||
_COMMAND_CLASS = { |
||||
'build_proto_modules': commands.BuildProtoModules, |
||||
'build_py': commands.BuildPy, |
||||
} |
||||
|
||||
setuptools.setup( |
||||
name='grpcio_health_checking', |
||||
version='0.10.0a0', |
||||
packages=list(_PACKAGES), |
||||
package_dir=_PACKAGE_DIRECTORIES, |
||||
install_requires=_INSTALL_REQUIRES, |
||||
setup_requires=_SETUP_REQUIRES, |
||||
cmdclass=_COMMAND_CLASS |
||||
) |
||||
@ -0,0 +1,2 @@ |
||||
<%namespace file="../vcxproj_defs.include" import="gen_project"/>\ |
||||
${gen_project('grpc_test_util_unsecure', libs)} |
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in new issue