The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.2 KiB
91 lines
3.2 KiB
/* |
|
* |
|
* 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. |
|
* |
|
*/ |
|
|
|
#include "src/core/support/file.h" |
|
|
|
#include <errno.h> |
|
#include <string.h> |
|
|
|
#include <grpc/support/alloc.h> |
|
#include <grpc/support/log.h> |
|
#include <grpc/support/string_util.h> |
|
|
|
#include "src/core/support/block_annotate.h" |
|
#include "src/core/support/string.h" |
|
|
|
gpr_slice gpr_load_file(const char *filename, int add_null_terminator, |
|
int *success) { |
|
unsigned char *contents = NULL; |
|
size_t contents_size = 0; |
|
char *error_msg = NULL; |
|
gpr_slice result = gpr_empty_slice(); |
|
FILE *file; |
|
size_t bytes_read = 0; |
|
|
|
GRPC_SCHEDULING_START_BLOCKING_REGION; |
|
file = fopen(filename, "rb"); |
|
if (file == NULL) { |
|
gpr_asprintf(&error_msg, "Could not open file %s (error = %s).", filename, |
|
strerror(errno)); |
|
GPR_ASSERT(error_msg != NULL); |
|
goto end; |
|
} |
|
fseek(file, 0, SEEK_END); |
|
/* Converting to size_t on the assumption that it will not fail */ |
|
contents_size = (size_t)ftell(file); |
|
fseek(file, 0, SEEK_SET); |
|
contents = gpr_malloc(contents_size + (add_null_terminator ? 1 : 0)); |
|
bytes_read = fread(contents, 1, contents_size, file); |
|
if (bytes_read < contents_size) { |
|
GPR_ASSERT(ferror(file)); |
|
gpr_asprintf(&error_msg, "Error %s occured while reading file %s.", |
|
strerror(errno), filename); |
|
GPR_ASSERT(error_msg != NULL); |
|
goto end; |
|
} |
|
if (success != NULL) *success = 1; |
|
if (add_null_terminator) { |
|
contents[contents_size++] = 0; |
|
} |
|
result = gpr_slice_new(contents, contents_size, gpr_free); |
|
|
|
end: |
|
if (error_msg != NULL) { |
|
gpr_log(GPR_ERROR, "%s", error_msg); |
|
gpr_free(error_msg); |
|
if (success != NULL) *success = 0; |
|
} |
|
if (file != NULL) fclose(file); |
|
GRPC_SCHEDULING_END_BLOCKING_REGION; |
|
return result; |
|
}
|
|
|