Make pulse listener built in
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f009fcb92b
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5FD0394ADBD72730
18
Makefile
18
Makefile
@ -3,13 +3,18 @@ CC := cc
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CFLAGS := -pedantic -Wall -Wno-deprecated-declarations -Os
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LDFLAGS := -lX11
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PULSEFLAGS := -lpulse
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NO_X := 0
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ifeq ($(NO_X), 1)
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CFLAGS := $(CFLAGS) -DNO_X
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endif
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# FreeBSD (uncomment)
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#LDFLAGS += -L/usr/local/lib -I/usr/local/include
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# # OpenBSD (uncomment)
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#LDFLAGS += -L/usr/X11R6/lib -I/usr/X11R6/include
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all: options dwmblocks dwmblocks-pulse-listener
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all: options dwmblocks
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options:
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@echo dwmblocks build options:
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@ -18,28 +23,23 @@ options:
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@echo "CC = ${CC}"
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@echo "PULSEFLAGS = ${PULSEFLAGS}"
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dwmblocks: dwmblocks.c blocks.def.h blocks.h
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${CC} -o dwmblocks dwmblocks.c ${CFLAGS} ${LDFLAGS}
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dwmblocks-pulse-listener: dwmblocks-pulse-listener.c
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${CC} -o dwmblocks-pulse-listener dwmblocks-pulse-listener.c ${CFLAGS} ${PULSEFLAGS}
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dwmblocks: dwmblocks.c pulse-listener.c blocks.def.h blocks.h
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${CC} -o dwmblocks dwmblocks.c pulse-listener.c ${CFLAGS} ${PULSEFLAGS} ${LDFLAGS}
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blocks.h:
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cp blocks.def.h $@
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clean:
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rm -f *.o *.gch dwmblocks dwmblocks-pulse-listener
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rm -f *.o *.gch dwmblocks
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install: dwmblocks
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mkdir -p ${DESTDIR}${PREFIX}/bin
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cp -f dwmblocks ${DESTDIR}${PREFIX}/bin
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cp -f dwmblocks-pulse-listener ${DESTDIR}${PREFIX}/bin
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chmod 755 ${DESTDIR}${PREFIX}/bin/dwmblocks
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install -m0755 scripts/* ${DESTDIR}${PREFIX}/bin
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uninstall:
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rm -f ${DESTDIR}${PREFIX}/bin/dwmblocks \
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${DESTDIR}${PREFIX}/bin/dwmblocks-pulse-listener \
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${DESTDIR}${PREFIX}/bin/dwmblocks-battery \
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${DESTDIR}${PREFIX}/bin/dwmblocks-network \
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${DESTDIR}${PREFIX}/bin/dwmblocks-volume \
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41
dwmblocks.c
41
dwmblocks.c
@ -5,6 +5,7 @@
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#include<signal.h>
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#include <time.h>
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#include <math.h>
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#include <pthread.h>
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#ifndef NO_X
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#include<X11/Xlib.h>
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#endif
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@ -27,6 +28,7 @@ typedef struct {
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unsigned int interval;
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unsigned int signal;
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} Block;
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typedef void(*ThreadCallback)(pthread_t *);
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void getcmd(const Block *block, char *output);
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void getcmds(int time);
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void getsigcmds(unsigned int signal);
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@ -38,7 +40,9 @@ void setupsignals(void);
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int getstatus(char *str, char *last);
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void pstdout(void);
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int gcd(int n1, int n2);
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void startthreads(void);
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void statusloop(void);
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void stopthreads(void);
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void termhandler(void);
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#ifndef NO_X
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void setroot(void);
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@ -57,6 +61,10 @@ static char statusbar[LENGTH(blocks)][CMDLENGTH] = {0};
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static char statusstr[2][STATUSLENGTH];
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static int statuscontinue = 1;
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static pthread_t main_thread;
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static pthread_t threads[LENGTH(thread_callbacks)];
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static int initdone = 0;
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//opens process *cmd and stores output in *output
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void getcmd(const Block *block, char *output) {
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strcpy(output, block->icon);
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@ -141,13 +149,21 @@ int getstatus(char *str, char *last) {
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}
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void pstdout() {
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if (!getstatus(statusstr[0], statusstr[1])) { //Only write out if text has changed.
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if (!initdone || !getstatus(statusstr[0], statusstr[1])) { //Only write out if text has changed.
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return;
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}
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printf("%s\n", statusstr[0]);
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fflush(stdout);
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}
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void somebar_pstdout() {
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if (!initdone || !getstatus(statusstr[0], statusstr[1])) { //Only write out if text has changed.
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return;
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}
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printf("status %s\n", statusstr[0]);
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fflush(stdout);
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}
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int gcd(int n1, int n2) {
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int temp;
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while (n2 > 0){
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@ -158,6 +174,16 @@ int gcd(int n1, int n2) {
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return n1;
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}
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void startthreads() {
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main_thread = pthread_self();
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for (int i = 0; i < LENGTH(thread_callbacks); ++i) {
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pthread_create(&threads[i],
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NULL,
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(void *(*)(void *)) thread_callbacks[i],
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&main_thread);
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}
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}
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void statusloop() {
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setupsignals();
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unsigned int interval = -1;
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@ -166,6 +192,7 @@ void statusloop() {
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interval = gcd(blocks[i].interval, interval);
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}
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}
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startthreads();
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int i = 0;
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getcmds(-1);
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long nsec_part = interval * 1000000;
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@ -174,6 +201,7 @@ void statusloop() {
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const struct timespec sleeptime = { sec_part, nsec_part };
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struct timespec tosleep = sleeptime;
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while (statuscontinue) {
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initdone = 1;
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if (nanosleep(&tosleep, &tosleep) < 0) {
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continue;
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}
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@ -183,13 +211,19 @@ void statusloop() {
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}
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}
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void stopthreads() {
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for (int i = 0; i < LENGTH(thread_callbacks); ++i) {
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pthread_kill(threads[i], SIGTERM);
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}
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}
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void termhandler() {
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statuscontinue = 0;
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}
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#ifndef NO_X
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void setroot() {
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if (!getstatus(statusstr[0], statusstr[1])) { //Only set root if text has changed.
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if (!initdone || !getstatus(statusstr[0], statusstr[1])) { //Only set root if text has changed.
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return;
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}
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XStoreName(dpy, root, statusstr[0]);
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@ -214,6 +248,8 @@ int main(int argc, char** argv) {
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strncpy(delim, argv[++i], delimLen);
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} else if (strcmp("-p", argv[i]) == 0) {
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writestatus = pstdout;
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} else if (strcmp("-s", argv[i]) == 0) {
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writestatus = somebar_pstdout;
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}
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}
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#ifndef NO_X
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@ -229,5 +265,6 @@ int main(int argc, char** argv) {
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#ifndef NO_X
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XCloseDisplay(dpy);
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#endif
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stopthreads();
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return 0;
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}
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@ -1,8 +1,10 @@
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#include "pulse-listener.h"
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#include <pulse/pulseaudio.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/signal.h>
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#include <signal.h>
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#include <limits.h>
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#define ERROR(...) fprintf(stderr, "error: " __VA_ARGS__)
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@ -15,113 +17,77 @@
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#define SIGMIN SIGRTMIN
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#endif
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typedef struct {
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size_t pid;
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unsigned int signum;
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} TargetData;
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static void sink_info_callback(pa_context *ctx, const pa_sink_info *info,
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int eol, TargetData *target) {
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if (info && kill(target->pid, target->signum) < 0) {
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ERROR("terget process died\n");
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exit(1);
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}
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int eol, pthread_t *main_thread) {
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pthread_kill(*main_thread, SIGMIN + 1);
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}
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static void server_info_callback(pa_context *ctx, const pa_server_info *info,
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TargetData *target) {
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pthread_t *main_thread) {
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pa_operation *op = pa_context_get_sink_info_by_name(
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ctx,
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info->default_sink_name,
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(pa_sink_info_cb_t) sink_info_callback,
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target);
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main_thread);
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pa_operation_unref(op);
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}
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static void subscribe_callback(pa_context *ctx,
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pa_subscription_event_type_t type, uint32_t idx,
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TargetData *target) {
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pthread_t *main_thread) {
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if ((type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK) {
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pa_operation *op = pa_context_get_sink_info_by_index(ctx,
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idx,
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(pa_sink_info_cb_t) sink_info_callback,
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target);
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main_thread);
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pa_operation_unref(op);
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}
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}
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static void state_callback(pa_context *ctx, TargetData *target) {
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static void state_callback(pa_context *ctx, pthread_t *main_thread) {
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pa_operation *op;
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switch (pa_context_get_state(ctx)) {
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case PA_CONTEXT_READY:
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op = pa_context_get_server_info(ctx,
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(pa_server_info_cb_t) server_info_callback,
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target);
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main_thread);
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pa_operation_unref(op);
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pa_context_set_subscribe_callback(ctx,
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(pa_context_subscribe_cb_t) subscribe_callback,
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target);
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main_thread);
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op = pa_context_subscribe(ctx, PA_SUBSCRIPTION_MASK_SINK, NULL, NULL);
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pa_operation_unref(op);
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break;
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case PA_CONTEXT_FAILED:
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if (kill(target->pid, target->signum) < 0) {
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ERROR("terget process died\n");
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exit(1);
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}
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pthread_kill(*main_thread, SIGMIN + 1);
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break;
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default:
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break;
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}
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}
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int main(int argc, const char **argv) {
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if (argc < 2) {
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ERROR("no pid\n");
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return 1;
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}
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char *endptr = NULL;
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unsigned int signum = SIGMIN + 1;
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if (argc >= 3 && argv[1][0] == '-') {
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const char *signumstr = argv[1] + 1;
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unsigned long num = strtoul(signumstr, &endptr, 10);
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if (num > SIGMAX - SIGMIN) {
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ERROR("signal out of range: %lu\n", num);
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return 1;
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}
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signum = SIGMIN + num;
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++argv;
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}
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endptr = NULL;
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errno = 0;
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unsigned long pid = strtoul(argv[1], &endptr, 10);
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if (argv[1][0] == '-' || errno == ERANGE) {
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ERROR("pid out of range: \"%s\"\n", argv[1]);
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return 1;
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}
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void pulse_listener_main(pthread_t *main_thread) {
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pa_mainloop *mainloop = pa_mainloop_new();
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if (!mainloop) {
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ERROR("could not create pulse mainloop\n");
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return 1;
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return;
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}
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pa_mainloop_api *api = pa_mainloop_get_api(mainloop);
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if (!api) {
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ERROR("could not create pulse mainloop api\n");
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return 1;
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return;
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}
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pa_context *context = pa_context_new(api, "dwmblocks-listener");
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if (!context) {
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ERROR("could not create pulse context\n");
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return 1;
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return;
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}
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TargetData target = { pid, signum };
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pa_context_set_state_callback(context,
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(pa_context_notify_cb_t)&state_callback,
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&target);
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main_thread);
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if (pa_context_connect(context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL) < 0) {
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ERROR("could not connect to pulse");
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return 1;
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return;
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}
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pa_mainloop_run(mainloop, NULL);
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return 0;
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}
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8
pulse-listener.h
Normal file
8
pulse-listener.h
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@ -0,0 +1,8 @@
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#ifndef INCLUDED_PULSE_LISTENER_H
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#define INCLUDED_PULSE_LISTENER_H
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#include <pthread.h>
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void pulse_listener_main(pthread_t *main_thread);
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#endif
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