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#define _POSIX_C_SOURCE
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <wlr/util/log.h>
#include "swaybar/config.h"
#include "swaybar/status_line.h"
#include "readline.h"
bool handle_status_readable(struct status_line *status) {
char *line = read_line_buffer(status->read,
status->buffer, status->buffer_size);
switch (status->protocol) {
case PROTOCOL_I3BAR:
// TODO
break;
case PROTOCOL_TEXT:
status->text = line;
return true;
case PROTOCOL_UNDEF:
if (!line) {
return false;
}
if (line[0] == '{') {
// TODO: JSON
} else {
status->text = line;
status->protocol = PROTOCOL_TEXT;
}
return false;
}
return false;
}
struct status_line *status_line_init(char *cmd) {
struct status_line *status = calloc(1, sizeof(struct status_line));
status->buffer_size = 4096;
status->buffer = malloc(status->buffer_size);
int pipe_read_fd[2];
int pipe_write_fd[2];
if (pipe(pipe_read_fd) != 0 || pipe(pipe_write_fd) != 0) {
wlr_log(L_ERROR, "Unable to create pipes for status_command fork");
exit(1);
}
status->pid = fork();
if (status->pid == 0) {
dup2(pipe_read_fd[1], STDOUT_FILENO);
close(pipe_read_fd[0]);
close(pipe_read_fd[1]);
dup2(pipe_write_fd[0], STDIN_FILENO);
close(pipe_write_fd[0]);
close(pipe_write_fd[1]);
char *const _cmd[] = { "sh", "-c", cmd, NULL, };
execvp(_cmd[0], _cmd);
exit(1);
}
close(pipe_read_fd[1]);
status->read_fd = pipe_read_fd[0];
fcntl(status->read_fd, F_SETFL, O_NONBLOCK);
close(pipe_write_fd[0]);
status->write_fd = pipe_write_fd[1];
fcntl(status->write_fd, F_SETFL, O_NONBLOCK);
status->read = fdopen(status->read_fd, "r");
status->write = fdopen(status->write_fd, "w");
return status;
}
void status_line_free(struct status_line *status) {
close(status->read_fd);
close(status->write_fd);
kill(status->pid, SIGTERM);
free(status);
}
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