fixed flickering/disappearing blocks issue
This commit is contained in:
parent
a88a0602c3
commit
f7b6042f77
151
dwmblocks.c
151
dwmblocks.c
@ -1,9 +1,11 @@
|
||||
#include<stdlib.h>
|
||||
#include<stdio.h>
|
||||
#include<string.h>
|
||||
#include<unistd.h>
|
||||
#include <errno.h>
|
||||
#include <signal.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/wait.h>
|
||||
#include <time.h>
|
||||
#include <unistd.h>
|
||||
#ifndef NO_X
|
||||
#include <X11/Xlib.h>
|
||||
#endif
|
||||
@ -28,6 +30,7 @@ typedef struct {
|
||||
#ifndef __OpenBSD__
|
||||
void dummysighandler(int num);
|
||||
#endif
|
||||
void remove_all(char *str, char to_remove);
|
||||
void getcmds(int time);
|
||||
void getsigcmds(unsigned int signal);
|
||||
void setupsignals();
|
||||
@ -48,7 +51,6 @@ static Window root;
|
||||
static void (*writestatus)() = pstdout;
|
||||
#endif
|
||||
|
||||
|
||||
#include "blocks.h"
|
||||
|
||||
static char statusbar[LENGTH(blocks)][CMDLENGTH] = {0};
|
||||
@ -56,35 +58,48 @@ static char statusstr[2][STATUSLENGTH];
|
||||
static int statusContinue = 1;
|
||||
static int returnStatus = 0;
|
||||
|
||||
//opens process *cmd and stores output in *output
|
||||
void getcmd(const Block *block, char *output)
|
||||
{
|
||||
if (block->signal)
|
||||
*output++ = block->signal;
|
||||
strcpy(output, block->icon);
|
||||
FILE *cmdf = popen(block->command, "r");
|
||||
if (!cmdf)
|
||||
return;
|
||||
int i = strlen(block->icon);
|
||||
fgets(output+i, CMDLENGTH-i-delimLen, cmdf);
|
||||
i = strlen(output);
|
||||
if (i == 0) {
|
||||
//return if block and command output are both empty
|
||||
pclose(cmdf);
|
||||
return;
|
||||
}
|
||||
//only chop off newline if one is present at the end
|
||||
i = output[i-1] == '\n' ? i-1 : i;
|
||||
if (delim[0] != '\0') {
|
||||
strncpy(output+i, delim, delimLen);
|
||||
}
|
||||
else
|
||||
output[i++] = '\0';
|
||||
pclose(cmdf);
|
||||
void remove_all(char *str, char to_remove) {
|
||||
char *read = str;
|
||||
char *write = str;
|
||||
|
||||
do {
|
||||
while (*read == to_remove)
|
||||
read++;
|
||||
*write++ = *read;
|
||||
read++;
|
||||
} while (*(read - 1));
|
||||
}
|
||||
|
||||
void getcmds(int time)
|
||||
{
|
||||
// opens process *cmd and stores output in *output
|
||||
void getcmd(const Block *block, char *output) {
|
||||
if (block->signal)
|
||||
*output++ = block->signal;
|
||||
FILE *cmdf = popen(block->command, "r");
|
||||
if (!cmdf) {
|
||||
printf("failed to run: %s, %d\n", block->command, errno);
|
||||
return;
|
||||
}
|
||||
char tmpstr[CMDLENGTH] = "";
|
||||
char *s;
|
||||
int e;
|
||||
do {
|
||||
s = fgets(tmpstr, CMDLENGTH - (strlen(delim) + 1), cmdf);
|
||||
e = errno;
|
||||
} while (!s && e == EINTR);
|
||||
pclose(cmdf);
|
||||
int i = strlen(block->icon);
|
||||
strcpy(output, block->icon);
|
||||
strcpy(output + i, tmpstr);
|
||||
remove_all(output, '\n');
|
||||
i = strlen(output);
|
||||
if ((i > 0 && block != &blocks[LENGTH(blocks) - 1])) {
|
||||
strcat(output, delim);
|
||||
}
|
||||
i += strlen(delim);
|
||||
output[i++] = '\0';
|
||||
}
|
||||
|
||||
void getcmds(int time) {
|
||||
const Block *current;
|
||||
for (unsigned int i = 0; i < LENGTH(blocks); i++) {
|
||||
current = blocks + i;
|
||||
@ -93,8 +108,7 @@ void getcmds(int time)
|
||||
}
|
||||
}
|
||||
|
||||
void getsigcmds(unsigned int signal)
|
||||
{
|
||||
void getsigcmds(unsigned int signal) {
|
||||
const Block *current;
|
||||
for (unsigned int i = 0; i < LENGTH(blocks); i++) {
|
||||
current = blocks + i;
|
||||
@ -103,8 +117,7 @@ void getsigcmds(unsigned int signal)
|
||||
}
|
||||
}
|
||||
|
||||
void setupsignals()
|
||||
{
|
||||
void setupsignals() {
|
||||
struct sigaction sa = {.sa_sigaction = sighandler, .sa_flags = SA_SIGINFO};
|
||||
#ifndef __OpenBSD__
|
||||
/* initialize all real time signals with dummy handler */
|
||||
@ -118,11 +131,9 @@ void setupsignals()
|
||||
if (blocks[i].signal > 0)
|
||||
sigaction(SIGMINUS + blocks[i].signal, &sa, NULL);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
int getstatus(char *str, char *last)
|
||||
{
|
||||
int getstatus(char *str, char *last) {
|
||||
strcpy(last, str);
|
||||
str[0] = '\0';
|
||||
for (unsigned int i = 0; i < LENGTH(blocks); i++)
|
||||
@ -132,16 +143,15 @@ int getstatus(char *str, char *last)
|
||||
}
|
||||
|
||||
#ifndef NO_X
|
||||
void setroot()
|
||||
{
|
||||
if (!getstatus(statusstr[0], statusstr[1]))//Only set root if text has changed.
|
||||
void setroot() {
|
||||
if (!getstatus(statusstr[0],
|
||||
statusstr[1])) // Only set root if text has changed.
|
||||
return;
|
||||
XStoreName(dpy, root, statusstr[0]);
|
||||
XFlush(dpy);
|
||||
}
|
||||
|
||||
int setupX()
|
||||
{
|
||||
int setupX() {
|
||||
dpy = XOpenDisplay(NULL);
|
||||
if (!dpy) {
|
||||
fprintf(stderr, "dwmblocks: Failed to open display\n");
|
||||
@ -153,39 +163,43 @@ int setupX()
|
||||
}
|
||||
#endif
|
||||
|
||||
void pstdout()
|
||||
{
|
||||
if (!getstatus(statusstr[0], statusstr[1]))//Only write out if text has changed.
|
||||
void pstdout() {
|
||||
if (!getstatus(statusstr[0],
|
||||
statusstr[1])) // Only write out if text has changed.
|
||||
return;
|
||||
printf("%s\n", statusstr[0]);
|
||||
fflush(stdout);
|
||||
}
|
||||
|
||||
|
||||
void statusloop()
|
||||
{
|
||||
void statusloop() {
|
||||
setupsignals();
|
||||
int i = 0;
|
||||
int gotscrewed = 0;
|
||||
struct timespec sleeptime = {1, 0};
|
||||
struct timespec tosleep = sleeptime;
|
||||
getcmds(-1);
|
||||
while (1) {
|
||||
// sleep for tosleep (should be sleeptime of 1s) and put what was left if
|
||||
// interrupted back into tosleep
|
||||
gotscrewed = nanosleep(&tosleep, &tosleep);
|
||||
// if interrupted then go back to sleep for remaining time
|
||||
if (gotscrewed == -1) {
|
||||
continue;
|
||||
}
|
||||
getcmds(i++);
|
||||
writestatus();
|
||||
if (!statusContinue)
|
||||
break;
|
||||
sleep(1.0);
|
||||
tosleep = sleeptime;
|
||||
}
|
||||
}
|
||||
|
||||
#ifndef __OpenBSD__
|
||||
/* this signal handler should do nothing */
|
||||
void dummysighandler(int signum)
|
||||
{
|
||||
return;
|
||||
}
|
||||
void dummysighandler(int signum) { return; }
|
||||
#endif
|
||||
|
||||
void sighandler(int signum, siginfo_t *si, void *ucontext)
|
||||
{
|
||||
void sighandler(int signum, siginfo_t *si, void *ucontext) {
|
||||
if (si->si_value.sival_int) {
|
||||
pid_t parent = getpid();
|
||||
if (fork() == 0) {
|
||||
@ -194,10 +208,13 @@ void sighandler(int signum, siginfo_t *si, void *ucontext)
|
||||
close(ConnectionNumber(dpy));
|
||||
#endif
|
||||
int i;
|
||||
for (i = 0; i < LENGTH(blocks) && blocks[i].signal != signum-SIGRTMIN; i++);
|
||||
for (i = 0; i < LENGTH(blocks) && blocks[i].signal != signum - SIGRTMIN;
|
||||
i++)
|
||||
;
|
||||
|
||||
char shcmd[1024];
|
||||
sprintf(shcmd, "%s; kill -%d %d", blocks[i].command, SIGRTMIN+blocks[i].signal, parent);
|
||||
sprintf(shcmd, "%s; kill -%d %d", blocks[i].command,
|
||||
SIGRTMIN + blocks[i].signal, parent);
|
||||
char *cmd[] = {"/bin/sh", "-c", shcmd, NULL};
|
||||
char button[2] = {'0' + si->si_value.sival_int, '\0'};
|
||||
setenv("BUTTON", button, 1);
|
||||
@ -212,18 +229,14 @@ void sighandler(int signum, siginfo_t *si, void *ucontext)
|
||||
}
|
||||
}
|
||||
|
||||
void termhandler()
|
||||
{
|
||||
statusContinue = 0;
|
||||
void termhandler() { statusContinue = 0; }
|
||||
|
||||
void chldhandler() {
|
||||
while (0 < waitpid(-1, NULL, WNOHANG))
|
||||
;
|
||||
}
|
||||
|
||||
void chldhandler()
|
||||
{
|
||||
while (0 < waitpid(-1, NULL, WNOHANG));
|
||||
}
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
int main(int argc, char **argv) {
|
||||
for (int i = 0; i < argc; i++) { // Handle command line arguments
|
||||
if (!strcmp("-d", argv[i]))
|
||||
strncpy(delim, argv[++i], delimLen);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user