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Add procPipe for subprocesses

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This commit is contained in:
C. McEnroe 2020-02-08 17:42:19 -05:00
parent 8128edc7eb
commit 156282c95d
2 changed files with 28 additions and 4 deletions
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30
chat.c
View File

@ -45,6 +45,21 @@ size_t idNext = Network + 1;
struct Self self = { .color = Default }; struct Self self = { .color = Default };
int procPipe[2] = { -1, -1 };
static void pipeRead(void) {
char buf[1024];
ssize_t len = read(procPipe[0], buf, sizeof(buf) - 1);
if (len < 0) err(EX_IOERR, "read");
if (!len) return;
buf[len - 1] = '\0';
char *ptr = buf;
while (ptr) {
char *line = strsep(&ptr, "\n");
uiFormat(Network, Warm, NULL, "%s", line);
}
}
static volatile sig_atomic_t signals[NSIG]; static volatile sig_atomic_t signals[NSIG];
static void signalHandler(int signal) { static void signalHandler(int signal) {
signals[signal] = 1; signals[signal] = 1;
@ -146,15 +161,22 @@ int main(int argc, char *argv[]) {
signal(SIGCHLD, signalHandler); signal(SIGCHLD, signalHandler);
sig_t cursesWinch = signal(SIGWINCH, signalHandler); sig_t cursesWinch = signal(SIGWINCH, signalHandler);
struct pollfd fds[2] = { int error = pipe(procPipe);
if (error) err(EX_OSERR, "pipe");
struct pollfd fds[3] = {
{ .events = POLLIN, .fd = STDIN_FILENO }, { .events = POLLIN, .fd = STDIN_FILENO },
{ .events = POLLIN, .fd = irc }, { .events = POLLIN, .fd = irc },
{ .events = POLLIN, .fd = procPipe[0] },
}; };
while (!self.quit) { while (!self.quit) {
int nfds = poll(fds, 2, -1); int nfds = poll(fds, ARRAY_LEN(fds), -1);
if (nfds < 0 && errno != EINTR) err(EX_IOERR, "poll"); if (nfds < 0 && errno != EINTR) err(EX_IOERR, "poll");
if (nfds > 0 && fds[0].revents) uiRead(); if (nfds > 0) {
if (nfds > 0 && fds[1].revents) ircRecv(); if (fds[0].revents) uiRead();
if (fds[1].revents) ircRecv();
if (fds[2].revents) pipeRead();
}
if (signals[SIGHUP]) self.quit = "zzz"; if (signals[SIGHUP]) self.quit = "zzz";
if (signals[SIGINT] || signals[SIGTERM]) break; if (signals[SIGINT] || signals[SIGTERM]) break;

2
chat.h
View File

@ -28,6 +28,8 @@
typedef unsigned char byte; typedef unsigned char byte;
int procPipe[2];
enum Color { enum Color {
White, Black, Blue, Green, Red, Brown, Magenta, Orange, White, Black, Blue, Green, Red, Brown, Magenta, Orange,
Yellow, LightGreen, Cyan, LightCyan, LightBlue, Pink, Gray, LightGray, Yellow, LightGreen, Cyan, LightCyan, LightBlue, Pink, Gray, LightGray,