From dbf5d92605a9db10e3e3cb154d03a515c5d5c5af Mon Sep 17 00:00:00 2001 From: reinelt Date: Sun, 8 May 2005 04:32:45 +0000 Subject: [lcd4linux @ 2005-05-08 04:32:43 by reinelt] CodingStyle added and applied git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@547 3ae390bd-cb1e-0410-b409-cd5a39f66f1f --- plugin_proc_stat.c | 461 ++++++++++++++++++++++++++++------------------------- 1 file changed, 245 insertions(+), 216 deletions(-) (limited to 'plugin_proc_stat.c') diff --git a/plugin_proc_stat.c b/plugin_proc_stat.c index 84f4810..55d7d81 100644 --- a/plugin_proc_stat.c +++ b/plugin_proc_stat.c @@ -1,4 +1,4 @@ -/* $Id: plugin_proc_stat.c,v 1.25 2005/01/18 06:30:23 reinelt Exp $ +/* $Id: plugin_proc_stat.c,v 1.26 2005/05/08 04:32:45 reinelt Exp $ * * plugin for /proc/stat parsing * @@ -23,6 +23,9 @@ * * * $Log: plugin_proc_stat.c,v $ + * Revision 1.26 2005/05/08 04:32:45 reinelt + * CodingStyle added and applied + * * Revision 1.25 2005/01/18 06:30:23 reinelt * added (C) to all copyright statements * @@ -151,253 +154,279 @@ static HASH Stat; static FILE *stream = NULL; -static void hash_put1 (const char *key1, const char *val) +static void hash_put1(const char *key1, const char *val) { - hash_put_delta (&Stat, key1, val); + hash_put_delta(&Stat, key1, val); } -static void hash_put2 (const char *key1, const char *key2, const char *val) +static void hash_put2(const char *key1, const char *key2, const char *val) { - char key[32]; - - qprintf(key, sizeof(key), "%s.%s", key1, key2); - hash_put1 (key, val); + char key[32]; + + qprintf(key, sizeof(key), "%s.%s", key1, key2); + hash_put1(key, val); } -static void hash_put3 (const char *key1, const char *key2, const char *key3, const char *val) +static void hash_put3(const char *key1, const char *key2, const char *key3, const char *val) { - char key[32]; - - qprintf(key, sizeof(key), "%s.%s.%s", key1, key2, key3); - hash_put1 (key, val); + char key[32]; + + qprintf(key, sizeof(key), "%s.%s.%s", key1, key2, key3); + hash_put1(key, val); } -static int parse_proc_stat (void) +static int parse_proc_stat(void) { - int age; - - /* reread every 10 msec only */ - age=hash_age(&Stat, NULL); - if (age>0 && age<=10) return 0; - - if (stream==NULL) stream=fopen("/proc/stat", "r"); - if (stream==NULL) { - error ("fopen(/proc/stat) failed: %s", strerror(errno)); - return -1; - } - - rewind(stream); - - while (!feof(stream)) { - char buffer[1024]; - if (fgets (buffer, sizeof(buffer), stream) == NULL) break; - - if (strncmp(buffer, "cpu", 3)==0) { - char *key[] = { "user", "nice", "system", "idle" }; - char delim[] = " \t\n"; - char *cpu, *beg, *end; - int i; - - cpu=buffer; - - /* skip "cpu" or "cpu0" block */ - if ((end=strpbrk(buffer, delim))!=NULL) *end='\0'; - beg=end?end+1:NULL; - - for (i=0; i<4 && beg!=NULL; i++) { - while (strchr(delim, *beg)) beg++; - if ((end=strpbrk(beg, delim))) *end='\0'; - hash_put2 (cpu, key[i], beg); - beg=end?end+1:NULL; - } - } - - else if (strncmp(buffer, "page ", 5)==0) { - char *key[] = { "in", "out" }; - char delim[] = " \t\n"; - char *beg, *end; - int i; - - for (i=0, beg=buffer+5; i<2 && beg!=NULL; i++) { - while (strchr(delim, *beg)) beg++; - if ((end=strpbrk(beg, delim))) *end='\0'; - hash_put2 ("page", key[i], beg); - beg=end?end+1:NULL; - } - } - - else if (strncmp(buffer, "swap ", 5)==0) { - char *key[] = { "in", "out" }; - char delim[] = " \t\n"; - char *beg, *end; - int i; - - for (i=0, beg=buffer+5; i<2 && beg!=NULL; i++) { - while (strchr(delim, *beg)) beg++; - if ((end=strpbrk(beg, delim))) *end='\0'; - hash_put2 ("swap", key[i], beg); - beg=end?end+1:NULL; - } - } - - else if (strncmp(buffer, "intr ", 5)==0) { - char delim[]=" \t\n"; - char *beg, *end, num[4]; - int i; - - for (i=0, beg=buffer+5; i<17 && beg!=NULL; i++) { - while (strchr(delim, *beg)) beg++; - if ((end=strpbrk(beg, delim))) *end='\0'; - if (i==0) - strcpy(num, "sum"); - else - qprintf(num, sizeof(num), "%d", i-1); - hash_put2 ("intr", num, beg); - beg=end?end+1:NULL; - } - } - - else if (strncmp(buffer, "disk_io:", 8)==0) { - char *key[] = { "io", "rio", "rblk", "wio", "wblk" }; - char delim[] = " ():,\t\n"; - char *dev, *beg, *end, *p; - int i; - - dev=buffer+8; - while (dev!=NULL) { - while (strchr(delim, *dev)) dev++; - if ((end=strchr(dev, ')'))) *end='\0'; - while ((p=strchr(dev, ','))!=NULL) *p=':'; - beg=end?end+1:NULL; - for (i=0; i<5 && beg!=NULL; i++) { - while (strchr(delim, *beg)) beg++; - if ((end=strpbrk(beg, delim))) *end='\0'; - hash_put3 ("disk_io", dev, key[i], beg); - beg=end?end+1:NULL; + int age; + + /* reread every 10 msec only */ + age = hash_age(&Stat, NULL); + if (age > 0 && age <= 10) + return 0; + + if (stream == NULL) + stream = fopen("/proc/stat", "r"); + if (stream == NULL) { + error("fopen(/proc/stat) failed: %s", strerror(errno)); + return -1; + } + + rewind(stream); + + while (!feof(stream)) { + char buffer[1024]; + if (fgets(buffer, sizeof(buffer), stream) == NULL) + break; + + if (strncmp(buffer, "cpu", 3) == 0) { + char *key[] = { "user", "nice", "system", "idle" }; + char delim[] = " \t\n"; + char *cpu, *beg, *end; + int i; + + cpu = buffer; + + /* skip "cpu" or "cpu0" block */ + if ((end = strpbrk(buffer, delim)) != NULL) + *end = '\0'; + beg = end ? end + 1 : NULL; + + for (i = 0; i < 4 && beg != NULL; i++) { + while (strchr(delim, *beg)) + beg++; + if ((end = strpbrk(beg, delim))) + *end = '\0'; + hash_put2(cpu, key[i], beg); + beg = end ? end + 1 : NULL; + } + } + + else if (strncmp(buffer, "page ", 5) == 0) { + char *key[] = { "in", "out" }; + char delim[] = " \t\n"; + char *beg, *end; + int i; + + for (i = 0, beg = buffer + 5; i < 2 && beg != NULL; i++) { + while (strchr(delim, *beg)) + beg++; + if ((end = strpbrk(beg, delim))) + *end = '\0'; + hash_put2("page", key[i], beg); + beg = end ? end + 1 : NULL; + } + } + + else if (strncmp(buffer, "swap ", 5) == 0) { + char *key[] = { "in", "out" }; + char delim[] = " \t\n"; + char *beg, *end; + int i; + + for (i = 0, beg = buffer + 5; i < 2 && beg != NULL; i++) { + while (strchr(delim, *beg)) + beg++; + if ((end = strpbrk(beg, delim))) + *end = '\0'; + hash_put2("swap", key[i], beg); + beg = end ? end + 1 : NULL; + } + } + + else if (strncmp(buffer, "intr ", 5) == 0) { + char delim[] = " \t\n"; + char *beg, *end, num[4]; + int i; + + for (i = 0, beg = buffer + 5; i < 17 && beg != NULL; i++) { + while (strchr(delim, *beg)) + beg++; + if ((end = strpbrk(beg, delim))) + *end = '\0'; + if (i == 0) + strcpy(num, "sum"); + else + qprintf(num, sizeof(num), "%d", i - 1); + hash_put2("intr", num, beg); + beg = end ? end + 1 : NULL; + } + } + + else if (strncmp(buffer, "disk_io:", 8) == 0) { + char *key[] = { "io", "rio", "rblk", "wio", "wblk" }; + char delim[] = " ():,\t\n"; + char *dev, *beg, *end, *p; + int i; + + dev = buffer + 8; + while (dev != NULL) { + while (strchr(delim, *dev)) + dev++; + if ((end = strchr(dev, ')'))) + *end = '\0'; + while ((p = strchr(dev, ',')) != NULL) + *p = ':'; + beg = end ? end + 1 : NULL; + for (i = 0; i < 5 && beg != NULL; i++) { + while (strchr(delim, *beg)) + beg++; + if ((end = strpbrk(beg, delim))) + *end = '\0'; + hash_put3("disk_io", dev, key[i], beg); + beg = end ? end + 1 : NULL; + } + dev = beg; + } + } + + else { + char delim[] = " \t\n"; + char *beg, *end; + + beg = buffer; + if ((end = strpbrk(beg, delim))) + *end = '\0'; + beg = end ? end + 1 : NULL; + if ((end = strpbrk(beg, delim))) + *end = '\0'; + while (strchr(delim, *beg)) + beg++; + hash_put1(buffer, beg); } - dev=beg; - } } - - else { - char delim[] = " \t\n"; - char *beg, *end; - - beg=buffer; - if ((end=strpbrk(beg, delim))) *end='\0'; - beg=end?end+1:NULL; - if ((end=strpbrk(beg, delim))) *end='\0'; - while (strchr(delim, *beg)) beg++; - hash_put1 (buffer, beg); - } - } - return 0; + return 0; } -static void my_proc_stat (RESULT *result, const int argc, RESULT *argv[]) +static void my_proc_stat(RESULT * result, const int argc, RESULT * argv[]) { - char *string; - double number; - - if (parse_proc_stat()<0) { - SetResult(&result, R_STRING, ""); - return; - } - - switch (argc) { - case 1: - string=hash_get(&Stat, R2S(argv[0]), NULL); - if (string==NULL) string=""; - SetResult(&result, R_STRING, string); - break; - case 2: - number=hash_get_delta(&Stat, R2S(argv[0]), NULL, R2N(argv[1])); - SetResult(&result, R_NUMBER, &number); - break; - default: - error ("proc_stat(): wrong number of parameters"); - SetResult(&result, R_STRING, ""); - } + char *string; + double number; + + if (parse_proc_stat() < 0) { + SetResult(&result, R_STRING, ""); + return; + } + + switch (argc) { + case 1: + string = hash_get(&Stat, R2S(argv[0]), NULL); + if (string == NULL) + string = ""; + SetResult(&result, R_STRING, string); + break; + case 2: + number = hash_get_delta(&Stat, R2S(argv[0]), NULL, R2N(argv[1])); + SetResult(&result, R_NUMBER, &number); + break; + default: + error("proc_stat(): wrong number of parameters"); + SetResult(&result, R_STRING, ""); + } } -static void my_cpu (RESULT *result, RESULT *arg1, RESULT *arg2) +static void my_cpu(RESULT * result, RESULT * arg1, RESULT * arg2) { - char *key; - int delay; - double value; - double cpu_user, cpu_nice, cpu_system, cpu_idle, cpu_total; - - if (parse_proc_stat()<0) { - SetResult(&result, R_STRING, ""); - return; - } - - key = R2S(arg1); - delay = R2N(arg2); - - cpu_user = hash_get_delta(&Stat, "cpu.user", NULL, delay); - cpu_nice = hash_get_delta(&Stat, "cpu.nice", NULL, delay); - cpu_system = hash_get_delta(&Stat, "cpu.system", NULL, delay); - cpu_idle = hash_get_delta(&Stat, "cpu.idle", NULL, delay); - - cpu_total = cpu_user+cpu_nice+cpu_system+cpu_idle; - - if (strcasecmp(key, "user" )==0) value=cpu_user; - else if (strcasecmp(key, "nice" )==0) value=cpu_nice; - else if (strcasecmp(key, "system")==0) value=cpu_system; - else if (strcasecmp(key, "idle" )==0) value=cpu_idle; - else if (strcasecmp(key, "busy" )==0) value=cpu_total-cpu_idle; - - if (cpu_total>0.0) - value = 100*value/cpu_total; - else - value=0.0; - - SetResult(&result, R_NUMBER, &value); + char *key; + int delay; + double value; + double cpu_user, cpu_nice, cpu_system, cpu_idle, cpu_total; + + if (parse_proc_stat() < 0) { + SetResult(&result, R_STRING, ""); + return; + } + + key = R2S(arg1); + delay = R2N(arg2); + + cpu_user = hash_get_delta(&Stat, "cpu.user", NULL, delay); + cpu_nice = hash_get_delta(&Stat, "cpu.nice", NULL, delay); + cpu_system = hash_get_delta(&Stat, "cpu.system", NULL, delay); + cpu_idle = hash_get_delta(&Stat, "cpu.idle", NULL, delay); + + cpu_total = cpu_user + cpu_nice + cpu_system + cpu_idle; + + if (strcasecmp(key, "user") == 0) + value = cpu_user; + else if (strcasecmp(key, "nice") == 0) + value = cpu_nice; + else if (strcasecmp(key, "system") == 0) + value = cpu_system; + else if (strcasecmp(key, "idle") == 0) + value = cpu_idle; + else if (strcasecmp(key, "busy") == 0) + value = cpu_total - cpu_idle; + + if (cpu_total > 0.0) + value = 100 * value / cpu_total; + else + value = 0.0; + + SetResult(&result, R_NUMBER, &value); } -static void my_disk (RESULT *result, RESULT *arg1, RESULT *arg2, RESULT *arg3) +static void my_disk(RESULT * result, RESULT * arg1, RESULT * arg2, RESULT * arg3) { - char *dev, *key, buffer[32]; - int delay; - double value; - - if (parse_proc_stat()<0) { - SetResult(&result, R_STRING, ""); - return; - } - - dev = R2S(arg1); - key = R2S(arg2); - delay = R2N(arg3); - - qprintf(buffer, sizeof(buffer), "disk_io\\.%s\\.%s", dev, key); - value = hash_get_regex(&Stat, buffer, NULL, delay); - - SetResult(&result, R_NUMBER, &value); + char *dev, *key, buffer[32]; + int delay; + double value; + + if (parse_proc_stat() < 0) { + SetResult(&result, R_STRING, ""); + return; + } + + dev = R2S(arg1); + key = R2S(arg2); + delay = R2N(arg3); + + qprintf(buffer, sizeof(buffer), "disk_io\\.%s\\.%s", dev, key); + value = hash_get_regex(&Stat, buffer, NULL, delay); + + SetResult(&result, R_NUMBER, &value); } -int plugin_init_proc_stat (void) +int plugin_init_proc_stat(void) { - hash_create(&Stat); - AddFunction ("proc_stat", -1, my_proc_stat); - AddFunction ("proc_stat::cpu", 2, my_cpu); - AddFunction ("proc_stat::disk", 3, my_disk); - return 0; + hash_create(&Stat); + AddFunction("proc_stat", -1, my_proc_stat); + AddFunction("proc_stat::cpu", 2, my_cpu); + AddFunction("proc_stat::disk", 3, my_disk); + return 0; } -void plugin_exit_proc_stat(void) +void plugin_exit_proc_stat(void) { - if (stream!=NULL) { - fclose (stream); - stream=NULL; - } - hash_destroy(&Stat); + if (stream != NULL) { + fclose(stream); + stream = NULL; + } + hash_destroy(&Stat); } -- cgit v1.2.3