106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
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//
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// Created by xajhuang on 2023/2/9.
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//
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#include <uv.h>
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#include "uthash/uthash.h"
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#include "misc.h"
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#include "user_errno.h"
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#include "zlog_module.h"
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#include "task_manager.h"
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#include "fs_watch.h"
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typedef struct {
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char watchPath[MAX_PATH];
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watch_cb pCb;
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uv_fs_event_t *uv_event;
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UT_hash_handle hh; ///< UT Hash handle
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} WATCH_CONTENT, *PWATCH_CONTENT;
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PWATCH_CONTENT g_watchContent = NULL;
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static void monitor_cb(uv_fs_event_t *handle, const char *filename, int events, int status) {
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PWATCH_CONTENT pCtx = (PWATCH_CONTENT)handle->data;
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char path[1024];
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size_t size = 1023;
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uv_fs_event_getpath(handle, path, &size);
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path[size] = '\0';
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if (pCtx && pCtx->pCb) {
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pCtx->pCb(path, filename, events, pCtx->watchPath);
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}
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#if 1
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fprintf(stderr, "Change detected in %s: ", path);
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if (events & UV_RENAME) {
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fprintf(stderr, "renamed");
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}
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if (events & UV_CHANGE) {
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fprintf(stderr, "changed");
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}
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fprintf(stderr, " %s\n", filename ? filename : "");
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#endif
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}
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int add_watch_path(const char *pFsPath, watch_cb cb) {
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PWATCH_CONTENT pCtx;
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if (cb == NULL || pFsPath == NULL || !file_exists(pFsPath)) {
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LOG_MOD(debug, ZLOG_MOD_WATCH, "Watch path [%s] notify function <%p>\n", pFsPath ? pFsPath : "<NULL>", cb);
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return -ERR_INPUT_PARAMS;
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}
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HASH_FIND_STR(g_watchContent, pFsPath, pCtx);
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if (pCtx != NULL) {
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return -ERR_ITEM_EXISTS;
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}
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pCtx = (PWATCH_CONTENT)malloc(sizeof(WATCH_CONTENT));
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if (pCtx == NULL) {
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LOG_MOD(error, ZLOG_MOD_WATCH, "Malloc memory error of %ld size\n", sizeof(WATCH_CONTENT));
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return -ERR_MALLOC_MEMORY;
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}
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pCtx->uv_event = (uv_fs_event_t *)malloc(sizeof(uv_fs_event_t));
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if (pCtx->uv_event == NULL) {
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LOG_MOD(error, ZLOG_MOD_WATCH, "Malloc memory error of %ld size\n", sizeof(uv_fs_event_t));
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free(pCtx);
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return -ERR_MALLOC_MEMORY;
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}
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memset(pCtx, 0, sizeof(WATCH_CONTENT));
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strcpy(pCtx->watchPath, pFsPath);
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pCtx->pCb = cb;
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pCtx->uv_event->data = pCtx;
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uv_fs_event_init(get_task_manager(), pCtx->uv_event);
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uv_fs_event_start(pCtx->uv_event, monitor_cb, pFsPath, UV_FS_EVENT_RECURSIVE);
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HASH_ADD_STR(g_watchContent, watchPath, pCtx);
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return ERR_SUCCESS;
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}
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int remove_watch_path(const char *pFsPath) {
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PWATCH_CONTENT pCtx;
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if (pFsPath == NULL || !file_exists(pFsPath)) {
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LOG_MOD(debug, ZLOG_MOD_WATCH, "Remove Watch path [%s]\n", pFsPath ? pFsPath : "<NULL>");
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return -ERR_INPUT_PARAMS;
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}
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HASH_FIND_STR(g_watchContent, pFsPath, pCtx);
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if (pCtx != NULL) {
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HASH_DEL(g_watchContent, pCtx);
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uv_fs_event_stop(pCtx->uv_event);
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free(pCtx->uv_event);
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free(pCtx);
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}
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return ERR_SUCCESS;
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}
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