From: Siraaj Khandkar Date: Mon, 16 Mar 2020 22:45:26 +0000 (-0400) Subject: Break-out logging and time-related functions into lib modules X-Git-Url: https://git.xandkar.net/?a=commitdiff_plain;h=17a27e4866eb3e245e17dc211b4469f1c5aa3f1e;p=khatus.git Break-out logging and time-related functions into lib modules --- diff --git a/x5/Makefile b/x5/Makefile index 585ca12..1a356f5 100644 --- a/x5/Makefile +++ b/x5/Makefile @@ -4,10 +4,18 @@ LDLIBS := -lX11 .PHONY: build clean rebuild -build: khatus +build: \ + khatus + +khatus: \ + khatus_lib_log.o \ + khatus_lib_time.o + +khatus_lib_time.o: khatus_lib_log.o clean: - @ find . -type f -executable -delete + @find . -type f -executable -delete + @find . -type f -name '*.o' -delete rebuild: @$(MAKE) -s clean diff --git a/x5/khatus.c b/x5/khatus.c index 16c9a56..e0b71cd 100644 --- a/x5/khatus.c +++ b/x5/khatus.c @@ -14,14 +14,10 @@ #include #include "bsdtimespec.h" +#include "khatus_lib_log.h" +#include "khatus_lib_time.h" -#define debug(...) if (cfg->log_level >= Debug) {fprintf(stderr, "[debug] " __VA_ARGS__); fflush(stderr);} -#define info(...) if (cfg->log_level >= Info ) {fprintf(stderr, "[info] " __VA_ARGS__); fflush(stderr);} -#define warn(...) if (cfg->log_level >= Warn ) {fprintf(stderr, "[warn] " __VA_ARGS__); fflush(stderr);} -#define error(...) if (cfg->log_level >= Error) {fprintf(stderr, "[error] " __VA_ARGS__); fflush(stderr);} -#define fatal(...) {fprintf(stderr, "[fatal] " __VA_ARGS__); exit(EXIT_FAILURE);} -#define usage(...) {print_usage(); fatal("[usage] " __VA_ARGS__);} - +#define usage(...) {print_usage(); fprintf(stderr, "Error:\n " __VA_ARGS__); exit(EXIT_FAILURE);} #define ERRMSG "ERROR" static const char errmsg[] = ERRMSG; @@ -29,14 +25,6 @@ static const int errlen = sizeof(ERRMSG) - 1; char *argv0; -typedef enum LogLevel { - Nothing, - Error, - Warn, - Info, - Debug -} LogLevel; - /* TODO: Convert fifo list to fifo array. */ typedef struct Fifo Fifo; struct Fifo { @@ -57,7 +45,6 @@ struct Config { int fifo_count; int total_width; int output_to_x_root_window; - LogLevel log_level; } defaults = { .interval = 1, .separator = "|", @@ -65,11 +52,10 @@ struct Config { .fifo_count = 0, .total_width = 0, .output_to_x_root_window = 0, - .log_level = Info, }; void -fifo_print_one(Fifo *f, Config *cfg) +fifo_print_one(Fifo *f) { info("Fifo " "{" @@ -92,10 +78,10 @@ fifo_print_one(Fifo *f, Config *cfg) } void -fifo_print_all(Fifo *head, Config *cfg) +fifo_print_all(Fifo *head) { for (Fifo *f = head; f; f = f->next) { - fifo_print_one(f, cfg); + fifo_print_one(f); } } @@ -109,16 +95,14 @@ config_print(Config *cfg) " separator = %s," " fifo_count = %d," " total_width = %d," - " log_level = %d," " fifos = ..." " }\n", cfg->interval, cfg->separator, cfg->fifo_count, - cfg->total_width, - cfg->log_level + cfg->total_width ); - fifo_print_all(cfg->fifos, cfg); + fifo_print_all(cfg->fifos); } int @@ -203,7 +187,7 @@ parse_opts_opt_l(Config *cfg, int argc, char *argv[], int i) log_level = atoi(param); if (log_level > Debug) usage("Option -l value (%d) exceeds maximum (%d)\n", log_level, Debug); - cfg->log_level = log_level; + _khatus_lib_log_level = log_level; opts_parse_any(cfg, argc, argv, i); } @@ -311,7 +295,7 @@ fifo_read_error(Fifo *f, char *buf) } void -fifo_read_one(Fifo *f, char *buf, Config *cfg) +fifo_read_one(Fifo *f, char *buf) { ssize_t current; ssize_t total; @@ -379,30 +363,7 @@ fifo_read_all(Config *cfg, char *buf) for (Fifo *f = cfg->fifos; f; f = f->next) { if (FD_ISSET(f->fd, &fds)) { debug("reading: %s\n", f->name); - fifo_read_one(f, buf, cfg); - } - } -} - -void -snooze(struct timespec *t, Config *cfg) -{ - struct timespec remainder; - int result; - - result = nanosleep(t, &remainder); - - if (result < 0) { - if (errno == EINTR) { - warn( - "nanosleep interrupted. Remainder: " - "{ tv_sec = %ld, tv_nsec = %ld }", - remainder.tv_sec, remainder.tv_nsec); - /* No big deal if we occasionally sleep less, - * so not attempting to correct after an interruption. - */ - } else { - fatal("nanosleep: %s\n", strerror(errno)); + fifo_read_one(f, buf); } } } @@ -508,7 +469,7 @@ main(int argc, char *argv[]) */ timespecsub(&ti, &td, &tc); debug("snooze YES\n"); - snooze(&tc, cfg); + snooze(&tc); } else { debug("snooze NO\n"); } diff --git a/x5/khatus_lib_log.c b/x5/khatus_lib_log.c new file mode 100644 index 0000000..16a5509 --- /dev/null +++ b/x5/khatus_lib_log.c @@ -0,0 +1,17 @@ +#include +#include +#include + +#include "khatus_lib_log.h" + +LogLevel _khatus_lib_log_level = Debug; + +void +_fatal(char *fmt, ...) { + va_list ap; + + va_start(ap, fmt); + fprintf(stderr, fmt, ap); + va_end(ap); + exit(EXIT_FAILURE); +} diff --git a/x5/khatus_lib_log.h b/x5/khatus_lib_log.h new file mode 100644 index 0000000..ca93ddd --- /dev/null +++ b/x5/khatus_lib_log.h @@ -0,0 +1,17 @@ +#define debug(...) if (_khatus_lib_log_level >= Debug) {fprintf(stderr, "[debug] " __VA_ARGS__); fflush(stderr);} +#define info(...) if (_khatus_lib_log_level >= Info ) {fprintf(stderr, "[info] " __VA_ARGS__); fflush(stderr);} +#define warn(...) if (_khatus_lib_log_level >= Warn ) {fprintf(stderr, "[warn] " __VA_ARGS__); fflush(stderr);} +#define error(...) if (_khatus_lib_log_level >= Error) {fprintf(stderr, "[error] " __VA_ARGS__); fflush(stderr);} +#define fatal(...) _fatal("[fatal] " __VA_ARGS__) + +typedef enum LogLevel { + Nothing, + Error, + Warn, + Info, + Debug +} LogLevel; + +void _fatal(char *, ...); + +LogLevel _khatus_lib_log_level; diff --git a/x5/khatus_lib_time.c b/x5/khatus_lib_time.c new file mode 100644 index 0000000..ba74226 --- /dev/null +++ b/x5/khatus_lib_time.c @@ -0,0 +1,31 @@ +#include +#include +#include +#include +#include + +#include "khatus_lib_log.h" +#include "khatus_lib_time.h" + +void +snooze(struct timespec *t) +{ + struct timespec remainder; + int result; + + result = nanosleep(t, &remainder); + + if (result < 0) { + if (errno == EINTR) { + warn( + "nanosleep interrupted. Remainder: " + "{ tv_sec = %ld, tv_nsec = %ld }", + remainder.tv_sec, remainder.tv_nsec); + /* No big deal if we occasionally sleep less, + * so not attempting to correct after an interruption. + */ + } else { + fatal("nanosleep: %s\n", strerror(errno)); + } + } +} diff --git a/x5/khatus_lib_time.h b/x5/khatus_lib_time.h new file mode 100644 index 0000000..2d16d65 --- /dev/null +++ b/x5/khatus_lib_time.h @@ -0,0 +1 @@ +void snooze(struct timespec *);