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swaybar: move core functionality to state.c

This commit is contained in:
Mikkel Oscar Lyderik 2016-01-24 02:19:08 +01:00
parent 6140f9c42c
commit c6fc0033e1
4 changed files with 127 additions and 120 deletions
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2
include/ipc-client.h
View File

@ -1,6 +1,8 @@
#ifndef _SWAY_IPC_CLIENT_H
#define _SWAY_IPC_CLIENT_H
#include <stdint.h>
#include "ipc.h"
/**

120
swaybar/main.c
View File

@ -1,86 +1,28 @@
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include <sys/select.h>
#include <sys/wait.h>
#include <errno.h>
#include <json-c/json.h>
#include <sys/un.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <getopt.h>
#include "ipc-client.h"
#include "client/registry.h"
#include "client/window.h"
#include "client/pango.h"
#include "stringop.h"
#include "log.h"
#include "state.h"
#include "config.h"
#include "render.h"
#include "status_line.h"
#include "ipc.h"
struct swaybar_state *state;
struct swaybar_state state;
void sway_terminate(void) {
free_state(state);
state_teardown(&state);
exit(EXIT_FAILURE);
}
void sig_handler(int signal) {
free_state(state);
state_teardown(&state);
exit(0);
}
void poll_for_update() {
fd_set readfds;
int activity;
bool dirty = true;
while (1) {
if (dirty) {
struct output *output = state->output;
if (window_prerender(output->window) && output->window->cairo) {
render(output, state->config, state->status);
window_render(output->window);
if (wl_display_dispatch(output->registry->display) == -1) {
break;
}
}
}
dirty = false;
FD_ZERO(&readfds);
FD_SET(state->ipc_event_socketfd, &readfds);
FD_SET(state->status_read_fd, &readfds);
activity = select(FD_SETSIZE, &readfds, NULL, NULL, NULL);
if (activity < 0) {
sway_log(L_ERROR, "polling failed: %d", errno);
}
if (FD_ISSET(state->ipc_event_socketfd, &readfds)) {
sway_log(L_DEBUG, "Got IPC event.");
dirty = handle_ipc_event(state);
}
if (state->config->status_command && FD_ISSET(state->status_read_fd, &readfds)) {
sway_log(L_DEBUG, "Got update from status command.");
dirty = handle_status_line(state);
}
}
}
int main(int argc, char **argv) {
char *socket_path = NULL;
char *bar_id = NULL;
bool debug = false;
state = init_state();
static struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
@ -145,72 +87,30 @@ int main(int argc, char **argv) {
init_log(L_ERROR);
}
state->output->registry = registry_poll();
if (!state->output->registry->desktop_shell) {
sway_abort("swaybar requires the compositor to support the desktop-shell extension.");
}
if (!socket_path) {
socket_path = get_socketpath();
if (!socket_path) {
sway_abort("Unable to retrieve socket path");
}
}
state->ipc_socketfd = ipc_open_socket(socket_path);
state->ipc_event_socketfd = ipc_open_socket(socket_path);
if (argc == optind) {
sway_abort("No output index provided");
}
int desired_output = atoi(argv[optind]);
ipc_bar_init(state, desired_output, bar_id);
struct output_state *output = state->output->registry->outputs->items[desired_output];
state->output->window = window_setup(state->output->registry, output->width, 30, false);
if (!state->output->window) {
sway_abort("Failed to create window.");
}
desktop_shell_set_panel(state->output->registry->desktop_shell, output->output, state->output->window->surface);
desktop_shell_set_panel_position(state->output->registry->desktop_shell, state->config->position);
/* set font */
state->output->window->font = state->config->font;
/* set window height */
set_window_height(state->output->window, state->config->height);
if (state->config->status_command) {
int pipefd[2];
pipe(pipefd);
state->status_command_pid = fork();
if (state->status_command_pid == 0) {
close(pipefd[0]);
dup2(pipefd[1], STDOUT_FILENO);
close(pipefd[1]);
char *const cmd[] = {
"sh",
"-c",
state->config->status_command,
NULL,
};
execvp(cmd[0], cmd);
return 0;
}
close(pipefd[1]);
state->status_read_fd = pipefd[0];
fcntl(state->status_read_fd, F_SETFL, O_NONBLOCK);
}
signal(SIGTERM, sig_handler);
poll_for_update();
state_setup(&state, socket_path, bar_id, desired_output);
free(socket_path);
free(bar_id);
state_run(&state);
// gracefully shutdown swaybar and status_command
free_state(state);
state_teardown(&state);
return 0;
}

112
swaybar/state.c
View File

@ -1,16 +1,20 @@
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "ipc-client.h"
#include "list.h"
#include "log.h"
#include "ipc.h"
#include "render.h"
#include "config.h"
#include "status_line.h"
#include "state.h"
struct swaybar_state *init_state() {
struct swaybar_state *state = calloc(1, sizeof(struct swaybar_state));
static void state_init(struct swaybar_state *state) {
state->config = init_config();
state->status = init_status_line();
state->output = malloc(sizeof(struct output));
@ -18,8 +22,106 @@ struct swaybar_state *init_state() {
state->output->registry = NULL;
state->output->workspaces = create_list();
state->output->name = NULL;
}
return state;
static void spawn_status_cmd_proc(struct swaybar_state *state) {
if (state->config->status_command) {
int pipefd[2];
pipe(pipefd);
state->status_command_pid = fork();
if (state->status_command_pid == 0) {
close(pipefd[0]);
dup2(pipefd[1], STDOUT_FILENO);
close(pipefd[1]);
char *const cmd[] = {
"sh",
"-c",
state->config->status_command,
NULL,
};
execvp(cmd[0], cmd);
return;
}
close(pipefd[1]);
state->status_read_fd = pipefd[0];
fcntl(state->status_read_fd, F_SETFL, O_NONBLOCK);
}
}
void state_setup(struct swaybar_state *state, const char *socket_path, const char *bar_id, int desired_output) {
/* initialize state with default values */
state_init(state);
state->output->registry = registry_poll();
if (!state->output->registry->desktop_shell) {
sway_abort("swaybar requires the compositor to support the desktop-shell extension.");
}
/* connect to sway ipc */
state->ipc_socketfd = ipc_open_socket(socket_path);
state->ipc_event_socketfd = ipc_open_socket(socket_path);
ipc_bar_init(state, desired_output, bar_id);
struct output_state *output = state->output->registry->outputs->items[desired_output];
state->output->window = window_setup(state->output->registry, output->width, 30, false);
if (!state->output->window) {
sway_abort("Failed to create window.");
}
desktop_shell_set_panel(state->output->registry->desktop_shell, output->output, state->output->window->surface);
desktop_shell_set_panel_position(state->output->registry->desktop_shell, state->config->position);
/* set font */
state->output->window->font = state->config->font;
/* set window height */
set_window_height(state->output->window, state->config->height);
/* spawn status command */
spawn_status_cmd_proc(state);
}
void state_run(struct swaybar_state *state) {
fd_set readfds;
int activity;
bool dirty = true;
while (1) {
if (dirty) {
struct output *output = state->output;
if (window_prerender(output->window) && output->window->cairo) {
render(output, state->config, state->status);
window_render(output->window);
if (wl_display_dispatch(output->registry->display) == -1) {
break;
}
}
}
dirty = false;
FD_ZERO(&readfds);
FD_SET(state->ipc_event_socketfd, &readfds);
FD_SET(state->status_read_fd, &readfds);
activity = select(FD_SETSIZE, &readfds, NULL, NULL, NULL);
if (activity < 0) {
sway_log(L_ERROR, "polling failed: %d", errno);
}
if (FD_ISSET(state->ipc_event_socketfd, &readfds)) {
sway_log(L_DEBUG, "Got IPC event.");
dirty = handle_ipc_event(state);
}
if (state->config->status_command && FD_ISSET(state->status_read_fd, &readfds)) {
sway_log(L_DEBUG, "Got update from status command.");
dirty = handle_status_line(state);
}
}
}
void free_workspaces(list_t *workspaces) {
@ -60,7 +162,7 @@ static void terminate_status_command(pid_t pid) {
}
}
void free_state(struct swaybar_state *state) {
void state_teardown(struct swaybar_state *state) {
free_config(state->config);
free_output(state->output);
free_status_line(state->status);
@ -80,6 +182,4 @@ void free_state(struct swaybar_state *state) {
/* terminate status command process */
terminate_status_command(state->status_command_pid);
free(state);
}

13
swaybar/state.h
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@ -33,9 +33,14 @@ struct workspace {
};
/**
* Initialize state.
* Setup state.
*/
struct swaybar_state *init_state();
void state_setup(struct swaybar_state *state, const char *socket_path, const char *bar_id, int desired_output);
/**
* State mainloop.
*/
void state_run(struct swaybar_state *state);
/**
* free workspace list.
@ -43,8 +48,8 @@ struct swaybar_state *init_state();
void free_workspaces(list_t *workspaces);
/**
* Free state struct.
* Teardown state.
*/
void free_state(struct swaybar_state *state);
void state_teardown(struct swaybar_state *state);
#endif /* _SWAYBAR_STATE_H */