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/* Copyright libuv project contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "uv.h"
#include "internal.h"
#include <sys/types.h>
#include <unistd.h>
static uv_mutex_t process_title_mutex;
static uv_once_t process_title_mutex_once = UV_ONCE_INIT;
static char* process_title;
static void init_process_title_mutex_once(void) {
if (uv_mutex_init(&process_title_mutex))
abort();
}
void uv__process_title_cleanup(void) {
uv_once(&process_title_mutex_once, init_process_title_mutex_once);
uv_mutex_destroy(&process_title_mutex);
}
char** uv_setup_args(int argc, char** argv) {
process_title = argc > 0 ? uv__strdup(argv[0]) : NULL;
return argv;
}
int uv_set_process_title(const char* title) {
char* new_title;
new_title = uv__strdup(title);
if (new_title == NULL)
return UV_ENOMEM;
uv_once(&process_title_mutex_once, init_process_title_mutex_once);
uv_mutex_lock(&process_title_mutex);
uv__free(process_title);
process_title = new_title;
setproctitle("%s", title);
uv_mutex_unlock(&process_title_mutex);
return 0;
}
int uv_get_process_title(char* buffer, size_t size) {
size_t len;
if (buffer == NULL || size == 0)
return UV_EINVAL;
uv_once(&process_title_mutex_once, init_process_title_mutex_once);
uv_mutex_lock(&process_title_mutex);
if (process_title != NULL) {
len = strlen(process_title) + 1;
if (size < len) {
uv_mutex_unlock(&process_title_mutex);
return UV_ENOBUFS;
}
memcpy(buffer, process_title, len);
} else {
len = 0;
}
uv_mutex_unlock(&process_title_mutex);
buffer[len] = '\0';
return 0;
}
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