Cory McWilliams
79022e1e1f
git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3621 ed5197a5-7fde-0310-b194-c3ffbd925b24
90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/* Copyright libuv project contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "uv.h"
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#include "internal.h"
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <procinfo.h>
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#include <ctype.h>
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extern char* original_exepath;
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extern uv_mutex_t process_title_mutex;
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extern uv_once_t process_title_mutex_once;
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extern void init_process_title_mutex_once(void);
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uint64_t uv__hrtime(uv_clocktype_t type) {
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uint64_t G = 1000000000;
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timebasestruct_t t;
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read_wall_time(&t, TIMEBASE_SZ);
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time_base_to_time(&t, TIMEBASE_SZ);
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return (uint64_t) t.tb_high * G + t.tb_low;
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}
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/*
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* We could use a static buffer for the path manipulations that we need outside
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* of the function, but this function could be called by multiple consumers and
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* we don't want to potentially create a race condition in the use of snprintf.
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* There is no direct way of getting the exe path in AIX - either through /procfs
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* or through some libc APIs. The below approach is to parse the argv[0]'s pattern
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* and use it in conjunction with PATH environment variable to craft one.
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*/
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int uv_exepath(char* buffer, size_t* size) {
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int res;
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char args[UV__PATH_MAX];
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size_t cached_len;
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struct procsinfo pi;
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if (buffer == NULL || size == NULL || *size == 0)
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return UV_EINVAL;
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uv_once(&process_title_mutex_once, init_process_title_mutex_once);
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uv_mutex_lock(&process_title_mutex);
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if (original_exepath != NULL) {
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cached_len = strlen(original_exepath);
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*size -= 1;
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if (*size > cached_len)
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*size = cached_len;
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memcpy(buffer, original_exepath, *size);
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buffer[*size] = '\0';
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uv_mutex_unlock(&process_title_mutex);
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return 0;
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}
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uv_mutex_unlock(&process_title_mutex);
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pi.pi_pid = getpid();
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res = getargs(&pi, sizeof(pi), args, sizeof(args));
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if (res < 0)
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return UV_EINVAL;
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return uv__search_path(args, buffer, size);
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}
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