340 lines
6.9 KiB
C
340 lines
6.9 KiB
C
/*
|
|
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
|
|
*
|
|
* 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 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 <Util.h>
|
|
|
|
#include <Memory.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <math.h>
|
|
#include <time.h>
|
|
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <sys/time.h>
|
|
#include <sys/stat.h>
|
|
#include <limits.h>
|
|
#include <pthread.h>
|
|
|
|
#include <UInt64.h>
|
|
|
|
#ifndef PATH_MAX
|
|
#define PATH_MAX 256
|
|
#endif
|
|
|
|
#ifndef SSIZE_MAX
|
|
#define SSIZE_MAX LONG_MAX
|
|
#endif
|
|
|
|
UInt64
|
|
UtilServerTs(void)
|
|
{
|
|
struct timeval tv;
|
|
|
|
UInt64 ts;
|
|
UInt64 sec;
|
|
UInt64 usec;
|
|
|
|
gettimeofday(&tv, NULL);
|
|
|
|
/*
|
|
* POSIX defines struct timeval to be:
|
|
*
|
|
* struct timeval {
|
|
* time_t tv_sec;
|
|
* suseconds_t tv_usec;
|
|
* };
|
|
*
|
|
* Note: Although the C standard does not require that
|
|
* time_t be an integer type (it may be floating point),
|
|
* according to POSIX, time_t shall be an integer type.
|
|
* As we are targeting POSIX, not ANSI/ISO C, we can
|
|
* rely on this.
|
|
*
|
|
* The same goes for suseconds_t.
|
|
*/
|
|
if (sizeof(time_t) == sizeof(UInt64))
|
|
{
|
|
/* 64 bit time_t: convert it to a 64 bit integer */
|
|
time_t ms = tv.tv_sec * 1000;
|
|
UInt32 high = (UInt32) (ms >> 32);
|
|
UInt32 low = (UInt32) ms;
|
|
|
|
sec = UInt64Create(high, low);
|
|
}
|
|
else
|
|
{
|
|
/* Assume 32 bit time_t: promote to 64 bit, then multiply, in
|
|
* case multiplication overflows 32 bits. */
|
|
sec = UInt64Create(0, tv.tv_sec);
|
|
sec = UInt64Mul(sec, UInt64Create(0, 1000));
|
|
}
|
|
|
|
usec = UInt64Create(0, tv.tv_usec / 1000);
|
|
ts = UInt64Add(sec, usec);
|
|
|
|
return ts;
|
|
}
|
|
|
|
UInt64
|
|
UtilLastModified(char *path)
|
|
{
|
|
struct stat st;
|
|
UInt64 ts = UInt64Create(0, 0);
|
|
|
|
if (stat(path, &st) == 0)
|
|
{
|
|
if (sizeof(time_t) == sizeof(UInt64))
|
|
{
|
|
/* 64 bit time_t: convert it to a 64 bit integer */
|
|
time_t ms = st.st_mtim.tv_sec * 1000;
|
|
UInt32 high = (UInt32) (ms >> 32);
|
|
UInt32 low = (UInt32) ms;
|
|
|
|
ts = UInt64Create(high, low);
|
|
}
|
|
else
|
|
{
|
|
ts = UInt64Create(0, st.st_mtim.tv_sec);
|
|
ts = UInt64Mul(ts, UInt64Create(0, 1000));
|
|
}
|
|
|
|
/* nsec gauanteed to fit in 32 bits */
|
|
ts = UInt64Add(ts, UInt64Create(0, st.st_mtim.tv_nsec / 1000000));
|
|
}
|
|
|
|
return ts;
|
|
}
|
|
|
|
int
|
|
UtilMkdir(const char *dir, const mode_t mode)
|
|
{
|
|
char tmp[PATH_MAX];
|
|
char *p = NULL;
|
|
|
|
struct stat st;
|
|
|
|
size_t len;
|
|
|
|
len = strnlen(dir, PATH_MAX);
|
|
if (!len || len == PATH_MAX)
|
|
{
|
|
errno = ENAMETOOLONG;
|
|
return -1;
|
|
}
|
|
|
|
memcpy(tmp, dir, len);
|
|
tmp[len] = '\0';
|
|
|
|
if (tmp[len - 1] == '/')
|
|
{
|
|
tmp[len - 1] = '\0';
|
|
}
|
|
|
|
if (stat(tmp, &st) == 0 && S_ISDIR(st.st_mode))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
for (p = tmp + 1; *p; p++)
|
|
{
|
|
if (*p == '/')
|
|
{
|
|
*p = 0;
|
|
|
|
if (stat(tmp, &st) != 0)
|
|
{
|
|
if (mkdir(tmp, mode) < 0)
|
|
{
|
|
/* errno already set by mkdir() */
|
|
return -1;
|
|
}
|
|
}
|
|
else if (!S_ISDIR(st.st_mode))
|
|
{
|
|
errno = ENOTDIR;
|
|
return -1;
|
|
}
|
|
|
|
*p = '/';
|
|
}
|
|
}
|
|
|
|
if (stat(tmp, &st) != 0)
|
|
{
|
|
if (mkdir(tmp, mode) < 0)
|
|
{
|
|
/* errno already set by mkdir() */
|
|
return -1;
|
|
}
|
|
}
|
|
else if (!S_ISDIR(st.st_mode))
|
|
{
|
|
errno = ENOTDIR;
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
UtilSleepMillis(UInt64 ms)
|
|
{
|
|
struct timespec ts;
|
|
int res;
|
|
|
|
if (sizeof(time_t) == sizeof(UInt64))
|
|
{
|
|
ts.tv_sec = ((time_t) UInt64High(ms) << 32 | UInt64Low(ms)) / 1000;
|
|
}
|
|
else
|
|
{
|
|
ts.tv_sec = UInt64Low(ms) / 1000;
|
|
}
|
|
|
|
ts.tv_nsec = UInt64Low(UInt64Rem(ms, UInt64Create(0, 1000))) * 1000000;
|
|
|
|
res = nanosleep(&ts, &ts);
|
|
|
|
return res;
|
|
}
|
|
|
|
ssize_t
|
|
UtilGetDelim(char **linePtr, size_t * n, int delim, Stream * stream)
|
|
{
|
|
char *curPos, *newLinePtr;
|
|
size_t newLinePtrLen;
|
|
int c;
|
|
|
|
if (!linePtr || !n || !stream)
|
|
{
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
if (*linePtr == NULL)
|
|
{
|
|
*n = 128;
|
|
|
|
if (!(*linePtr = Malloc(*n)))
|
|
{
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
curPos = *linePtr;
|
|
|
|
while (1)
|
|
{
|
|
c = StreamGetc(stream);
|
|
|
|
if (StreamError(stream) || (c == EOF && curPos == *linePtr))
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
if (c == EOF)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if ((*linePtr + *n - curPos) < 2)
|
|
{
|
|
if (SSIZE_MAX / 2 < *n)
|
|
{
|
|
#ifdef EOVERFLOW
|
|
errno = EOVERFLOW;
|
|
#else
|
|
errno = ERANGE;
|
|
#endif
|
|
return -1;
|
|
}
|
|
|
|
newLinePtrLen = *n * 2;
|
|
|
|
if (!(newLinePtr = Realloc(*linePtr, newLinePtrLen)))
|
|
{
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
|
|
curPos = newLinePtr + (curPos - *linePtr);
|
|
*linePtr = newLinePtr;
|
|
*n = newLinePtrLen;
|
|
}
|
|
|
|
*curPos++ = (char) c;
|
|
|
|
if (c == delim)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
*curPos = '\0';
|
|
return (ssize_t) (curPos - *linePtr);
|
|
}
|
|
|
|
ssize_t
|
|
UtilGetLine(char **linePtr, size_t * n, Stream * stream)
|
|
{
|
|
return UtilGetDelim(linePtr, n, '\n', stream);
|
|
}
|
|
|
|
static void
|
|
ThreadNoDestructor(void *p)
|
|
{
|
|
free(p);
|
|
}
|
|
|
|
UInt32
|
|
UtilThreadNo(void)
|
|
{
|
|
static pthread_key_t key;
|
|
static int createdKey = 0;
|
|
static unsigned long count = 0;
|
|
|
|
UInt32 *no;
|
|
|
|
if (!createdKey)
|
|
{
|
|
pthread_key_create(&key, ThreadNoDestructor);
|
|
createdKey = 1;
|
|
}
|
|
|
|
no = pthread_getspecific(key);
|
|
if (!no)
|
|
{
|
|
no = malloc(sizeof(UInt32));
|
|
*no = count++;
|
|
pthread_setspecific(key, no);
|
|
}
|
|
|
|
return *no;
|
|
}
|