diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/utils.c | 117 | ||||
| -rw-r--r-- | common/utils.h | 65 |
2 files changed, 182 insertions, 0 deletions
diff --git a/common/utils.c b/common/utils.c new file mode 100644 index 0000000..6803941 --- /dev/null +++ b/common/utils.c @@ -0,0 +1,117 @@ +/* + usbmuxd - iPhone/iPod Touch USB multiplex server daemon + +Copyright (C) 2009 Hector Martin "marcan" <hector@marcansoft.com> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 or version 3. + +This program 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 General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include "utils.h" + +#ifdef USBMUXD_DAEMON +# include "log.h" +# define util_error(...) usbmuxd_log(LL_ERROR, __VA_ARGS__) +#else +# define util_error(...) fprintf(stderr, __VA_ARGS__) +#endif + +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 collection_init(struct collection *col) +{ + col->list = malloc(sizeof(void *)); + memset(col->list, 0, sizeof(void *)); + col->capacity = 1; +} + +void collection_free(struct collection *col) +{ + free(col->list); + col->list = NULL; + col->capacity = 0; +} + +void collection_add(struct collection *col, void *element) +{ + int i; + for(i=0; i<col->capacity; i++) { + if(!col->list[i]) { + col->list[i] = element; + return; + } + } + col->list = realloc(col->list, sizeof(void*) * col->capacity * 2); + memset(&col->list[col->capacity], 0, sizeof(void *) * col->capacity); + col->list[col->capacity] = element; + col->capacity *= 2; +} + +void collection_remove(struct collection *col, void *element) +{ + int i; + for(i=0; i<col->capacity; i++) { + if(col->list[i] == element) { + col->list[i] = NULL; + return; + } + } + util_error("collection_remove: element %p not present in collection %p (cap %d)", element, col, col->capacity); +} + +int collection_count(struct collection *col) +{ + int i, cnt = 0; + for(i=0; i<col->capacity; i++) { + if(col->list[i]) + cnt++; + } + return cnt; +} diff --git a/common/utils.h b/common/utils.h new file mode 100644 index 0000000..ad4ac9d --- /dev/null +++ b/common/utils.h @@ -0,0 +1,65 @@ +/* + usbmuxd - iPhone/iPod Touch USB multiplex server daemon + +Copyright (C) 2009 Hector Martin "marcan" <hector@marcansoft.com> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 or version 3. + +This program 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 General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +*/ + +#ifndef __UTILS_H__ +#define __UTILS_H__ + +#include <poll.h> + +enum fdowner { + FD_LISTEN, + FD_CLIENT, + FD_USB +}; + +struct fdlist { + int count; + int capacity; + enum fdowner *owners; + struct pollfd *fds; +}; + +void fdlist_create(struct fdlist *list); +void fdlist_add(struct fdlist *list, enum fdowner owner, int fd, short events); +void fdlist_free(struct fdlist *list); + +struct collection { + void **list; + int capacity; +}; + +void collection_init(struct collection *col); +void collection_add(struct collection *col, void *element); +void collection_remove(struct collection *col, void *element); +int collection_count(struct collection *col); +void collection_free(struct collection *col); + +#define FOREACH(var, col) \ + do { \ + int _iter; \ + for(_iter=0; _iter<(col)->capacity; _iter++) { \ + if(!(col)->list[_iter]) continue; \ + var = (col)->list[_iter]; + +#define ENDFOREACH \ + } \ + } while(0); + +#endif |