|
|
|
@ -161,6 +161,7 @@ struct grpc_fd { |
|
|
|
|
/* The fd is either closed or we relinquished control of it. In either
|
|
|
|
|
cases, this indicates that the 'fd' on this structure is no longer |
|
|
|
|
valid */ |
|
|
|
|
gpr_mu orphaned_mu; |
|
|
|
|
bool orphaned; |
|
|
|
|
|
|
|
|
|
gpr_atm read_closure; |
|
|
|
@ -285,6 +286,7 @@ static void fd_destroy(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { |
|
|
|
|
/* Add the fd to the freelist */ |
|
|
|
|
grpc_iomgr_unregister_object(&fd->iomgr_object); |
|
|
|
|
pollable_destroy(&fd->pollable); |
|
|
|
|
gpr_mu_destroy(&fd->orphaned_mu); |
|
|
|
|
gpr_mu_lock(&fd_freelist_mu); |
|
|
|
|
fd->freelist_next = fd_freelist; |
|
|
|
|
fd_freelist = fd; |
|
|
|
@ -347,6 +349,7 @@ static grpc_fd *fd_create(int fd, const char *name) { |
|
|
|
|
|
|
|
|
|
gpr_atm_rel_store(&new_fd->refst, (gpr_atm)1); |
|
|
|
|
new_fd->fd = fd; |
|
|
|
|
gpr_mu_init(&new_fd->orphaned_mu); |
|
|
|
|
new_fd->orphaned = false; |
|
|
|
|
grpc_lfev_init(&new_fd->read_closure); |
|
|
|
|
grpc_lfev_init(&new_fd->write_closure); |
|
|
|
@ -374,11 +377,11 @@ static grpc_fd *fd_create(int fd, const char *name) { |
|
|
|
|
|
|
|
|
|
static int fd_wrapped_fd(grpc_fd *fd) { |
|
|
|
|
int ret_fd = -1; |
|
|
|
|
gpr_mu_lock(&fd->pollable.po.mu); |
|
|
|
|
gpr_mu_lock(&fd->orphaned_mu); |
|
|
|
|
if (!fd->orphaned) { |
|
|
|
|
ret_fd = fd->fd; |
|
|
|
|
} |
|
|
|
|
gpr_mu_unlock(&fd->pollable.po.mu); |
|
|
|
|
gpr_mu_unlock(&fd->orphaned_mu); |
|
|
|
|
|
|
|
|
|
return ret_fd; |
|
|
|
|
} |
|
|
|
@ -390,6 +393,7 @@ static void fd_orphan(grpc_exec_ctx *exec_ctx, grpc_fd *fd, |
|
|
|
|
grpc_error *error = GRPC_ERROR_NONE; |
|
|
|
|
|
|
|
|
|
gpr_mu_lock(&fd->pollable.po.mu); |
|
|
|
|
gpr_mu_lock(&fd->orphaned_mu); |
|
|
|
|
fd->on_done_closure = on_done; |
|
|
|
|
|
|
|
|
|
/* If release_fd is not NULL, we should be relinquishing control of the file
|
|
|
|
@ -413,6 +417,7 @@ static void fd_orphan(grpc_exec_ctx *exec_ctx, grpc_fd *fd, |
|
|
|
|
|
|
|
|
|
grpc_closure_sched(exec_ctx, fd->on_done_closure, GRPC_ERROR_REF(error)); |
|
|
|
|
|
|
|
|
|
gpr_mu_unlock(&fd->orphaned_mu); |
|
|
|
|
gpr_mu_unlock(&fd->pollable.po.mu); |
|
|
|
|
UNREF_BY(exec_ctx, fd, 2, reason); /* Drop the reference */ |
|
|
|
|
GRPC_LOG_IF_ERROR("fd_orphan", GRPC_ERROR_REF(error)); |
|
|
|
@ -545,9 +550,11 @@ static void pollable_init(pollable *p, polling_obj_type type) { |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static void pollable_destroy(pollable *p) { |
|
|
|
|
close(p->epfd); |
|
|
|
|
grpc_wakeup_fd_destroy(&p->wakeup); |
|
|
|
|
po_destroy(&p->po); |
|
|
|
|
if (p->epfd != -1) { |
|
|
|
|
close(p->epfd); |
|
|
|
|
grpc_wakeup_fd_destroy(&p->wakeup); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/* ensure that p->epfd, p->wakeup are initialized; p->po.mu must be held */ |
|
|
|
@ -590,7 +597,13 @@ static grpc_error *pollable_add_fd(pollable *p, grpc_fd *fd) { |
|
|
|
|
grpc_error *error = GRPC_ERROR_NONE; |
|
|
|
|
static const char *err_desc = "pollable_add_fd"; |
|
|
|
|
const int epfd = p->epfd; |
|
|
|
|
GPR_ASSERT(epfd != -1); |
|
|
|
|
|
|
|
|
|
gpr_mu_lock(&fd->orphaned_mu); |
|
|
|
|
if (fd->orphaned) { |
|
|
|
|
gpr_mu_unlock(&fd->orphaned_mu); |
|
|
|
|
return GRPC_ERROR_NONE; |
|
|
|
|
} |
|
|
|
|
struct epoll_event ev_fd = { |
|
|
|
|
.events = EPOLLET | EPOLLIN | EPOLLOUT | EPOLLEXCLUSIVE, .data.ptr = fd}; |
|
|
|
|
if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd->fd, &ev_fd) != 0) { |
|
|
|
@ -614,6 +627,7 @@ static grpc_error *pollable_add_fd(pollable *p, grpc_fd *fd) { |
|
|
|
|
append_error(&error, GRPC_OS_ERROR(errno, "epoll_ctl"), err_desc); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
gpr_mu_unlock(&fd->orphaned_mu); |
|
|
|
|
|
|
|
|
|
return error; |
|
|
|
|
} |
|
|
|
|