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61 lines
1.9 KiB
61 lines
1.9 KiB
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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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 <limits.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <sys/time.h>
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uint64_t uv_hrtime() {
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return (gethrtime());
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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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*/
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int uv_exepath(char* buffer, size_t* size) {
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size_t res;
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pid_t pid;
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char buf[PATH_MAX];
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if (buffer == NULL)
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return (-1);
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if (size == NULL)
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return (-1);
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pid = getpid();
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(void) snprintf(buf, sizeof (buf), "/proc/%d/path/a.out", pid);
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res = readlink(buf, buffer, *size - 1);
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if (res < 0)
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return (res);
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buffer[res] = '\0';
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*size = res;
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return (0);
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}
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