2 5e11c00c 2021-03-02 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 5e11c00c 2021-03-02 op * Permission to use, copy, modify, and distribute this software for any
5 5e11c00c 2021-03-02 op * purpose with or without fee is hereby granted, provided that the above
6 5e11c00c 2021-03-02 op * copyright notice and this permission notice appear in all copies.
8 5e11c00c 2021-03-02 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 5e11c00c 2021-03-02 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 5e11c00c 2021-03-02 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 5e11c00c 2021-03-02 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 5e11c00c 2021-03-02 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 5e11c00c 2021-03-02 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 5e11c00c 2021-03-02 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 786e6deb 2021-07-21 op #include "compat.h"
19 17e5106b 2021-03-21 op #include <ctype.h>
20 1304bbdd 2021-03-15 op #include <errno.h>
21 5e11c00c 2021-03-02 op #include <fcntl.h>
22 b0003f58 2021-03-08 op #include <stdlib.h>
23 cd18973c 2021-08-13 op #include <string.h>
24 1304bbdd 2021-03-15 op #include <unistd.h>
26 786e6deb 2021-07-21 op #include "telescope.h"
28 bc10f6a5 2021-07-12 op static void imsg_event_add(struct imsgev *);
31 5e11c00c 2021-03-02 op mark_nonblock(int fd)
35 5e11c00c 2021-03-02 op if ((flags = fcntl(fd, F_GETFL)) == -1)
37 5e11c00c 2021-03-02 op if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1)
43 ee130316 2021-03-09 op has_prefix(const char *str, const char *prfx)
47 ee130316 2021-03-09 op for (i = 0; str[i] != '\0' && prfx[i] != '\0'; ++i)
48 ee130316 2021-03-09 op if (str[i] != prfx[i])
50 ee130316 2021-03-09 op return prfx[i] == '\0';
54 cd18973c 2021-08-13 op has_suffix(const char *str, const char *sufx)
58 cd18973c 2021-08-13 op l = strlen(str);
59 cd18973c 2021-08-13 op s = strlen(sufx);
64 cd18973c 2021-08-13 op return !strcmp(str + (l - s), sufx);
68 17e5106b 2021-03-21 op unicode_isspace(uint32_t cp)
70 17e5106b 2021-03-21 op if (cp < INT8_MAX)
71 17e5106b 2021-03-21 op return isspace(cp);
76 17e5106b 2021-03-21 op unicode_isgraph(uint32_t cp)
78 17e5106b 2021-03-21 op if (cp < INT8_MAX)
79 17e5106b 2021-03-21 op return isgraph(cp);
84 bc10f6a5 2021-07-12 op imsg_event_add(struct imsgev *iev)
86 bc10f6a5 2021-07-12 op iev->events = EV_READ;
87 bc10f6a5 2021-07-12 op if (iev->ibuf.w.queued)
88 bc10f6a5 2021-07-12 op iev->events |= EV_WRITE;
90 bc10f6a5 2021-07-12 op event_del(&iev->ev);
91 bc10f6a5 2021-07-12 op event_set(&iev->ev, iev->ibuf.fd, iev->events, iev->handler, iev);
92 bc10f6a5 2021-07-12 op event_add(&iev->ev, NULL);
96 bc10f6a5 2021-07-12 op dispatch_imsg(struct imsgev *iev, short event, imsg_handlerfn **handlers,
99 bc10f6a5 2021-07-12 op struct imsgbuf *ibuf;
100 bc10f6a5 2021-07-12 op struct imsg imsg;
101 bc10f6a5 2021-07-12 op size_t datalen, i;
104 bc10f6a5 2021-07-12 op ibuf = &iev->ibuf;
106 bc10f6a5 2021-07-12 op if (event & EV_READ) {
107 bc10f6a5 2021-07-12 op if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
108 bc10f6a5 2021-07-12 op err(1, "imsg_read error");
112 bc10f6a5 2021-07-12 op if (event & EV_WRITE) {
113 bc10f6a5 2021-07-12 op if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN)
114 bc10f6a5 2021-07-12 op err(1, "msgbuf_write");
120 1304bbdd 2021-03-15 op if ((n = imsg_get(ibuf, &imsg)) == -1)
124 1304bbdd 2021-03-15 op datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
125 1304bbdd 2021-03-15 op i = imsg.hdr.type;
126 3a227e9a 2021-03-18 op if (i > (size / sizeof(imsg_handlerfn*)) || handlers[i] == NULL)
128 1304bbdd 2021-03-15 op handlers[i](&imsg, datalen);
129 1304bbdd 2021-03-15 op imsg_free(&imsg);
132 bc10f6a5 2021-07-12 op imsg_event_add(iev);
137 bc10f6a5 2021-07-12 op imsg_compose_event(struct imsgev *iev, uint16_t type, uint32_t peerid,
138 bc10f6a5 2021-07-12 op pid_t pid, int fd, const void *data, uint16_t datalen)
142 bc10f6a5 2021-07-12 op if ((ret = imsg_compose(&iev->ibuf, type, peerid, pid, fd, data,
143 bc10f6a5 2021-07-12 op datalen) != -1))
144 bc10f6a5 2021-07-12 op imsg_event_add(iev);