diff options
Diffstat (limited to 'Utilities/cmlibuv/src/unix/proctitle.c')
-rw-r--r-- | Utilities/cmlibuv/src/unix/proctitle.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/Utilities/cmlibuv/src/unix/proctitle.c b/Utilities/cmlibuv/src/unix/proctitle.c new file mode 100644 index 0000000..08d875f --- /dev/null +++ b/Utilities/cmlibuv/src/unix/proctitle.c @@ -0,0 +1,105 @@ +/* Copyright Joyent, Inc. and other Node 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 <stdlib.h> +#include <string.h> + +extern void uv__set_process_title(const char* title); + +static void* args_mem; + +static struct { + char* str; + size_t len; +} process_title; + + +char** uv_setup_args(int argc, char** argv) { + char** new_argv; + size_t size; + char* s; + int i; + + if (argc <= 0) + return argv; + + /* Calculate how much memory we need for the argv strings. */ + size = 0; + for (i = 0; i < argc; i++) + size += strlen(argv[i]) + 1; + + process_title.str = argv[0]; + process_title.len = argv[argc - 1] + strlen(argv[argc - 1]) - argv[0]; + assert(process_title.len + 1 == size); /* argv memory should be adjacent. */ + + /* Add space for the argv pointers. */ + size += (argc + 1) * sizeof(char*); + + new_argv = uv__malloc(size); + if (new_argv == NULL) + return argv; + args_mem = new_argv; + + /* Copy over the strings and set up the pointer table. */ + s = (char*) &new_argv[argc + 1]; + for (i = 0; i < argc; i++) { + size = strlen(argv[i]) + 1; + memcpy(s, argv[i], size); + new_argv[i] = s; + s += size; + } + new_argv[i] = NULL; + + return new_argv; +} + + +int uv_set_process_title(const char* title) { + if (process_title.len == 0) + return 0; + + /* No need to terminate, byte after is always '\0'. */ + strncpy(process_title.str, title, process_title.len); + uv__set_process_title(title); + + return 0; +} + + +int uv_get_process_title(char* buffer, size_t size) { + if (buffer == NULL || size == 0) + return -EINVAL; + else if (size <= process_title.len) + return -ENOBUFS; + + memcpy(buffer, process_title.str, process_title.len + 1); + buffer[process_title.len] = '\0'; + + return 0; +} + + +UV_DESTRUCTOR(static void free_args_mem(void)) { + uv__free(args_mem); /* Keep valgrind happy. */ + args_mem = NULL; +} |