alema/hkd
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saved up some lines with color macros

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This commit is contained in:
Alessandro Mauri 2020-05-12 12:07:45 +02:00
parent 7c85ebab77
commit 2a236af8a1
1 changed files with 15 additions and 26 deletions

41
hkd.c
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@ -25,6 +25,8 @@
#define ANSI_COLOR_CYAN "\x1b[36m" #define ANSI_COLOR_CYAN "\x1b[36m"
#define ANSI_COLOR_RESET "\x1b[0m" #define ANSI_COLOR_RESET "\x1b[0m"
#define yellow(str) (ANSI_COLOR_YELLOW str ANSI_COLOR_RESET)
#define red(str) (ANSI_COLOR_RED str ANSI_COLOR_RESET)
#define test_bit(yalv, abs_b) ((((char *)abs_b)[yalv/8] & (1<<yalv%8)) > 0) #define test_bit(yalv, abs_b) ((((char *)abs_b)[yalv/8] & (1<<yalv%8)) > 0)
/* Determine dependencies based on platform */ /* Determine dependencies based on platform */
@ -72,15 +74,9 @@ int main (void)
update_descriptors_list(&fds, &fd_num); update_descriptors_list(&fds, &fd_num);
if (fd_num) { if (fd_num) {
fprintf(stderr, fprintf(stderr, yellow("Monitoring %d devices\n"), fd_num);
ANSI_COLOR_YELLOW
"Monitoring %d devices\n"
ANSI_COLOR_RESET, fd_num);
} else { } else {
fprintf(stderr, fprintf(stderr, red("Could not open any devices, exiting\n"));
ANSI_COLOR_RED
"Could not open any devices, exiting\n"
ANSI_COLOR_RESET);
exit(-1); exit(-1);
} }
// TODO: watch for events inside /dev/input and reload accordingly // TODO: watch for events inside /dev/input and reload accordingly
@ -93,7 +89,9 @@ int main (void)
struct key_buffer pb = {NULL, 0}; // Pressed keys buffer struct key_buffer pb = {NULL, 0}; // Pressed keys buffer
ssize_t rb; // Read bits ssize_t rb; // Read bits
/* Prepare for epoll */
#if OS == linux #if OS == linux
fprintf(stderr, yellow("using epoll based polling\n"));
struct epoll_event epoll_read_ev; struct epoll_event epoll_read_ev;
epoll_read_ev.events = EPOLLIN; epoll_read_ev.events = EPOLLIN;
int ev_fd = epoll_create(1); int ev_fd = epoll_create(1);
@ -102,10 +100,10 @@ int main (void)
for (int i = 0; i < fd_num; i++) for (int i = 0; i < fd_num; i++)
if (epoll_ctl(ev_fd, EPOLL_CTL_ADD, fds[i].fd, &epoll_read_ev) < 0) if (epoll_ctl(ev_fd, EPOLL_CTL_ADD, fds[i].fd, &epoll_read_ev) < 0)
die("epoll_ctl", errno); die("epoll_ctl", errno);
#endif /* Prepare for using epoll */ #endif
/* MAIN EVENT LOOP */
for (;;) { for (;;) {
// TODO: better error reporting // TODO: better error reporting
/* On linux use epoll(2) as it gives better performance */ /* On linux use epoll(2) as it gives better performance */
#if OS == linux #if OS == linux
@ -184,7 +182,7 @@ int main (void)
wait(NULL); wait(NULL);
free(pb.buf); free(pb.buf);
if (!term) if (!term)
fputs("An error occured\n", stderr); fprintf(stderr, red("An error occured\n"));
for (int i = 0; i < fd_num; i++) { for (int i = 0; i < fd_num; i++) {
if (close(fds[i].fd) == -1) if (close(fds[i].fd) == -1)
die("close file descriptors", errno); die("close file descriptors", errno);
@ -239,16 +237,13 @@ int key_buffer_remove (struct key_buffer *pb, unsigned short key)
void int_handler (int signum) void int_handler (int signum)
{ {
fprintf(stderr, ANSI_COLOR_YELLOW fprintf(stderr, yellow("Received interrupt signal, exiting gracefully...\n"));
"Received interrupt signal, exiting gracefully...\n" ANSI_COLOR_RESET);
term = 1; term = 1;
} }
void die (const char *msg, int err) void die (const char *msg, int err)
{ {
fprintf(stderr, fprintf(stderr, red("%s: %s"), msg != NULL ? msg : "error", err ? strerror(err): "exiting");
ANSI_COLOR_RED "%s: %s" ANSI_COLOR_RESET,
msg != NULL ? msg : "error", err ? strerror(err): "exiting");
exit(err); exit(err);
} }
@ -264,8 +259,7 @@ void exec_command (char *path)
if(execvp(path, argv) < 0) { if(execvp(path, argv) < 0) {
/* execv only returns if an error occured, so we exit /* execv only returns if an error occured, so we exit
* otherwise we duplicate the process */ * otherwise we duplicate the process */
fprintf(stderr, ANSI_COLOR_RED "Could not run %s\n" ANSI_COLOR_RESET fprintf(stderr, red("Could not run %s\n"), path);
, path);
exit(-1); exit(-1);
} }
/* we shouldn't be here */ /* we shouldn't be here */
@ -305,24 +299,19 @@ void update_descriptors_list (struct pollfd **fds, int *fd_num)
/* Open device and check if it can give key events otherwise ignore it */ /* Open device and check if it can give key events otherwise ignore it */
tmp_fd = open(ev_path, O_RDONLY | O_NONBLOCK); tmp_fd = open(ev_path, O_RDONLY | O_NONBLOCK);
if (tmp_fd < 0) { if (tmp_fd < 0) {
fprintf(stderr, fprintf(stderr, red("Could not open device %s\n"), ev_path);
ANSI_COLOR_RED "Could not open device %s\n"
ANSI_COLOR_RESET, ev_path);
continue; continue;
} }
memset(evtype_b, 0, sizeof(evtype_b)); memset(evtype_b, 0, sizeof(evtype_b));
if (ioctl(tmp_fd, EVIOCGBIT(0, EV_MAX), evtype_b) < 0) { if (ioctl(tmp_fd, EVIOCGBIT(0, EV_MAX), evtype_b) < 0) {
fprintf(stderr,ANSI_COLOR_RED fprintf(stderr, red("Could not read capabilities of device %s\n"),ev_path);
"Could not read capabilities of device %s\n"
ANSI_COLOR_RESET,ev_path);
close(tmp_fd); close(tmp_fd);
continue; continue;
} }
if (!test_bit(EV_KEY, evtype_b)) { if (!test_bit(EV_KEY, evtype_b)) {
fprintf(stderr, ANSI_COLOR_YELLOW "Ignoring device %s\n" fprintf(stderr, yellow("Ignoring device %s\n"), ev_path);
ANSI_COLOR_RESET, ev_path);
close(tmp_fd); close(tmp_fd);
continue; continue;
} }