63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
#include <windows.h>
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struct dirmonitor_internal {
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HANDLE handle;
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};
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int get_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int buffer_size) {
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HANDLE handle = monitor->handle;
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if (handle && handle != INVALID_HANDLE_VALUE) {
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DWORD bytes_transferred;
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if (ReadDirectoryChangesW(handle, buffer, buffer_size, TRUE, FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_DIR_NAME, &bytes_transferred, NULL, NULL) == 0)
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return 0;
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return bytes_transferred;
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}
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return 0;
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}
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struct dirmonitor* init_dirmonitor() {
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return calloc(sizeof(struct dirmonitor_internal), 1);
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}
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static void close_monitor_handle(struct dirmonitor_internal* monitor) {
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if (monitor->handle && monitor->handle != INVALID_HANDLE_VALUE) {
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HANDLE handle = monitor->handle;
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monitor->handle = NULL;
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CancelIoEx(handle, NULL);
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CloseHandle(handle);
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}
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}
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void deinit_dirmonitor(struct dirmonitor_internal* monitor) {
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close_monitor_handle(monitor);
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}
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int translate_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int buffer_size, int (*change_callback)(int, const char*, void*), void* data) {
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for (FILE_NOTIFY_INFORMATION* info = (FILE_NOTIFY_INFORMATION*)buffer; (char*)info < buffer + buffer_size; info = (FILE_NOTIFY_INFORMATION*)(((char*)info) + info->NextEntryOffset)) {
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char transform_buffer[PATH_MAX*4];
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int count = WideCharToMultiByte(CP_UTF8, 0, (WCHAR*)info->FileName, info->FileNameLength, transform_buffer, PATH_MAX*4 - 1, NULL, NULL);
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change_callback(count, buffer, data);
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if (!info->NextEntryOffset)
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break;
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}
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return 0;
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}
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int add_dirmonitor(struct dirmonitor_internal* monitor, const char* path) {
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close_monitor_handle(monitor);
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monitor->handle = CreateFileA(path, FILE_LIST_DIRECTORY, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
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return !monitor->handle || monitor->handle == INVALID_HANDLE_VALUE ? -1 : 1;
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}
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void remove_dirmonitor(struct dirmonitor_internal* monitor, int fd) {
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close_monitor_handle(monitor);
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}
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