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Diffstat (limited to 'src/utils.c')
| -rw-r--r-- | src/utils.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c new file mode 100644 index 0000000..2cc5675 --- /dev/null +++ b/src/utils.c @@ -0,0 +1,131 @@ +/* + * utils.c + * + * Copyright (C) 2009 Hector Martin <hector@marcansoft.com> + * Copyright (C) 2009 Nikias Bassen <nikias@gmx.li> + * Copyright (c) 2013 Federico Mena Quintero + * + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation, either version 2.1 of the + * License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <stdarg.h> +#include <time.h> +#include <sys/time.h> +#include <errno.h> +#ifdef __APPLE__ +#include <mach/mach_time.h> +#endif + +#include "utils.h" + +#include "log.h" +#define util_error(...) usbmuxd_log(LL_ERROR, __VA_ARGS__) + +void fdlist_create(struct fdlist *list) +{ + list->count = 0; + list->capacity = 4; + list->owners = malloc(sizeof(*list->owners) * list->capacity); + list->fds = malloc(sizeof(*list->fds) * list->capacity); +} +void fdlist_add(struct fdlist *list, enum fdowner owner, int fd, short events) +{ + if(list->count == list->capacity) { + list->capacity *= 2; + list->owners = realloc(list->owners, sizeof(*list->owners) * list->capacity); + list->fds = realloc(list->fds, sizeof(*list->fds) * list->capacity); + } + list->owners[list->count] = owner; + list->fds[list->count].fd = fd; + list->fds[list->count].events = events; + list->fds[list->count].revents = 0; + list->count++; +} + +void fdlist_free(struct fdlist *list) +{ + list->count = 0; + list->capacity = 0; + free(list->owners); + list->owners = NULL; + free(list->fds); + list->fds = NULL; +} + +void fdlist_reset(struct fdlist *list) +{ + list->count = 0; +} + +#ifndef HAVE_CLOCK_GETTIME +typedef int clockid_t; +#define CLOCK_MONOTONIC 1 + +static int clock_gettime(clockid_t clk_id, struct timespec *ts) +{ + // See http://developer.apple.com/library/mac/qa/qa1398 + + uint64_t mach_time, nano_sec; + + static mach_timebase_info_data_t base_info; + + mach_time = mach_absolute_time(); + + if (base_info.denom == 0) { + (void) mach_timebase_info(&base_info); + } + + if (base_info.numer == 1 && base_info.denom == 1) + nano_sec = mach_time; + else + nano_sec = mach_time * base_info.numer / base_info.denom; + + ts->tv_sec = nano_sec / 1000000000; + ts->tv_nsec = nano_sec % 1000000000; + + return 0; +} +#endif + +void get_tick_count(struct timeval * tv) +{ + struct timespec ts; + if(0 == clock_gettime(CLOCK_MONOTONIC, &ts)) { + tv->tv_sec = ts.tv_sec; + tv->tv_usec = ts.tv_nsec / 1000; + } else { + gettimeofday(tv, NULL); + } +} + +/** + * Get number of milliseconds since the epoch. + */ +uint64_t mstime64(void) +{ + struct timeval tv; + get_tick_count(&tv); + + // Careful, avoid overflow on 32 bit systems + // time_t could be 4 bytes + return ((long long)tv.tv_sec) * 1000LL + ((long long)tv.tv_usec) / 1000LL; +} |