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https://github.com/swaywm/sway.git
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Add timeout; Fix receive loop & style issues
This commit is contained in:
nyorain
parent
f0463dab32
commit
727215c907
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@ -59,9 +59,13 @@ struct get_pixels_request {
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struct get_clipboard_request {
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struct ipc_client *client;
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json_object *json;
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struct wlc_event_source *event_source;
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struct wlc_event_source *fd_event_source;
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struct wlc_event_source *timer_event_source;
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char *type;
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unsigned int *pending;
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char *buf;
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size_t buf_size;
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size_t buf_position;
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};
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struct sockaddr_un *ipc_user_sockaddr(void);
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@ -339,68 +343,7 @@ static bool is_text_target(const char *target) {
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|| strcmp(target, "COMPOUND_TEXT") == 0);
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}
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static int ipc_selection_data_cb(int fd, uint32_t mask, void *data) {
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assert(data);
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struct get_clipboard_request *req = (struct get_clipboard_request *)data;
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if (mask & WLC_EVENT_ERROR) {
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sway_log(L_ERROR, "Selection data fd error");
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goto cleanup;
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}
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if (mask & WLC_EVENT_READABLE) {
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static const int max_size = 8192 * 1000;
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int len = 512;
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int i = 0;
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char *buf = malloc(len);
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// read data as long as there is data avilable
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// grow the buffer step_size in every iteration
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for(;;) {
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int amt = read(fd, buf + i, len - i - 1);
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if (amt <= 0)
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break;
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i += amt;
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if (i >= len - 1) {
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if (len >= max_size) {
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sway_log(L_ERROR, "selection data too large");
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free(buf);
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goto cleanup;
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}
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char *next = realloc(buf, (len *= 2));
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if (!next) {
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sway_log_errno(L_ERROR, "relloc failed");
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free(buf);
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goto cleanup;
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}
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buf = next;
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}
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}
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buf[i] = '\0';
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if (is_text_target(req->type)) {
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json_object_object_add(req->json, req->type,
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json_object_new_string(buf));
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} else {
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size_t outlen;
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char *b64 = b64_encode(buf, i, &outlen);
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char *type = malloc(strlen(req->type) + 8);
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strcat(type, ";base64");
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json_object_object_add(req->json, type,
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json_object_new_string(b64));
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free(type);
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free(b64);
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}
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free(buf);
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}
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cleanup:
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close(fd);
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static void release_clipboard_request(struct get_clipboard_request *req) {
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if (--(*req->pending) == 0) {
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const char *str = json_object_to_json_string(req->json);
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ipc_send_reply(req->client, str, (uint32_t)strlen(str));
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@ -408,8 +351,81 @@ cleanup:
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}
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free(req->type);
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wlc_event_source_remove(req->event_source);
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free(req->buf);
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wlc_event_source_remove(req->fd_event_source);
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wlc_event_source_remove(req->timer_event_source);
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free(req);
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}
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static int ipc_selection_data_cb(int fd, uint32_t mask, void *data) {
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assert(data);
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struct get_clipboard_request *req = (struct get_clipboard_request *)data;
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if (mask & WLC_EVENT_ERROR) {
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sway_log(L_ERROR, "Selection data fd error");
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goto release;
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}
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if (mask & WLC_EVENT_READABLE) {
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static const unsigned int max_size = 8192 * 1024;
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int amt = 0;
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do {
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int size = req->buf_size - req->buf_position;
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int amt = read(fd, req->buf + req->buf_position, size - 1);
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if (amt < 0) {
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if (errno == EAGAIN) {
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return 0;
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}
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sway_log_errno(L_INFO, "Failed to read from clipboard data fd");
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goto release;
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}
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req->buf_position += amt;
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if (req->buf_position >= req->buf_size - 1) {
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if (req->buf_size >= max_size) {
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sway_log(L_ERROR, "get_clipbard: selection data too large");
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goto release;
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}
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char *next = realloc(req->buf, req->buf_size *= 2);
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if (!next) {
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sway_log_errno(L_ERROR, "get_clipboard: realloc data buffer failed");
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goto release;
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}
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req->buf = next;
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}
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} while(amt != 0);
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req->buf[req->buf_position] = '\0';
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if (is_text_target(req->type)) {
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json_object_object_add(req->json, req->type,
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json_object_new_string(req->buf));
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} else {
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size_t outlen;
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char *b64 = b64_encode(req->buf, req->buf_position, &outlen);
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char *type = malloc(strlen(req->type) + 8);
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strcat(type, ";base64");
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json_object_object_add(req->json, type,
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json_object_new_string(b64));
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free(type);
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free(b64);
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}
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}
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release:
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release_clipboard_request(req);
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return 0;
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}
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static int ipc_selection_timer_cb(void *data) {
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assert(data);
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struct get_clipboard_request *req = (struct get_clipboard_request *)data;
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sway_log(L_INFO, "get_clipbard: timeout for type %s", req->type);
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release_clipboard_request(req);
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return 0;
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}
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@ -471,18 +487,21 @@ void ipc_get_clipboard(struct ipc_client *client, char *buf) {
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const char *pattern = requested->items[l];
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bool found = false;
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for (size_t i = 0; i < size; ++i) {
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if (mime_type_matches(types[i], pattern)) {
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if (!mime_type_matches(types[i], pattern)) {
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continue;
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}
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found = true;
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struct get_clipboard_request *req = malloc(sizeof(*req));
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if (!req) {
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sway_log(L_ERROR, "Cannot allocate get_clipboard_request");
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sway_log(L_ERROR, "get_clipboard: request malloc failed");
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goto data_error;
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}
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int pipes[2];
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if (pipe(pipes) == -1) {
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sway_log_errno(L_ERROR, "pipe call failed");
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sway_log_errno(L_ERROR, "get_clipboard: pipe call failed");
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free(req);
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goto data_error;
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}
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@ -494,7 +513,16 @@ void ipc_get_clipboard(struct ipc_client *client, char *buf) {
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close(pipes[0]);
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close(pipes[1]);
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free(req);
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sway_log(L_ERROR, "wlc_get_selection_data failed");
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sway_log(L_ERROR, "get_clipboard: failed to retrieve "
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"selection data");
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goto data_error;
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}
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if (!(req->buf = malloc(512))) {
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close(pipes[0]);
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close(pipes[1]);
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free(req);
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sway_log_errno(L_ERROR, "get_clipboard: buf malloc failed");
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goto data_error;
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}
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@ -504,10 +532,15 @@ void ipc_get_clipboard(struct ipc_client *client, char *buf) {
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req->type = strdup(types[i]);
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req->json = json;
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req->pending = pending;
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req->event_source = wlc_event_loop_add_fd(pipes[0],
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req->buf_position = 0;
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req->buf_size = 512;
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req->timer_event_source = wlc_event_loop_add_timer(ipc_selection_timer_cb, req);
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req->fd_event_source = wlc_event_loop_add_fd(pipes[0],
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WLC_EVENT_READABLE | WLC_EVENT_ERROR | WLC_EVENT_HANGUP,
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&ipc_selection_data_cb, req);
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wlc_event_source_timer_update(req->timer_event_source, 1000);
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// NOTE: remove this goto to enable retrieving multiple
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// targets at once. The whole implementation is already
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// made for it. The only reason it was disabled
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@ -518,7 +551,6 @@ void ipc_get_clipboard(struct ipc_client *client, char *buf) {
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// return empty data)
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goto cleanup;
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}
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}
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if (!found) {
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sway_log(L_INFO, "Invalid clipboard type %s requested", pattern);
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