From 474ee78ed074aeedb8ef4c27eda376631ecdc39a Mon Sep 17 00:00:00 2001 From: Florian Forster Date: Fri, 1 May 2009 16:06:09 +0200 Subject: [PATCH] fscache plugin: Simplyfied the parsing code. --- src/fscache.c | 180 ++++++++++++++++++++++++++------------------------ 1 file changed, 95 insertions(+), 85 deletions(-) diff --git a/src/fscache.c b/src/fscache.c index 5ae980a6..dc0eb119 100644 --- a/src/fscache.c +++ b/src/fscache.c @@ -106,103 +106,112 @@ Ops pend=N Number of times async ops added to pending queues 63 events to collect in 13 groups */ - -static int fscache_number_of_values = 62; - -struct fscache_values { - char name[20]; - unsigned long long value; -}; /*end struct fscache_values */ - -static void fscache_submit(struct fscache_values submit_values[]){ -/*submit logic goes here!!!!!*/ - +static void fscache_submit (const char *section, const char *name, + counter_t counter_value) +{ value_t values[1]; value_list_t vl = VALUE_LIST_INIT; - int i; vl.values = values; vl.values_len = 1; - sstrncpy(vl.host, hostname_g, sizeof(vl.host)); - sstrncpy(vl.plugin, "fscache", sizeof(vl.plugin)); - sstrncpy(vl.plugin_instance, "fscache", - sizeof(vl.plugin_instance)); + + vl.values[0].counter = counter_value; + + sstrncpy(vl.host, hostname_g, sizeof (vl.host)); + sstrncpy(vl.plugin, "fscache", sizeof (vl.plugin)); + sstrncpy(vl.plugin_instance, section, sizeof (vl.plugin_instance)); sstrncpy(vl.type, "fscache_stat", sizeof(vl.type)); + sstrncpy(vl.type_instance, name, sizeof(vl.type_instance)); - for (i = 0; i < fscache_number_of_values; i++){ - values[0].counter = submit_values[i].value; - sstrncpy(vl.type_instance, submit_values[i].name, - sizeof(vl.type_instance)); - DEBUG("%s-%s/fscache-%s = %llu", - vl.plugin, vl.plugin_instance, - vl.type_instance, submit_values[i].value); - plugin_dispatch_values(&vl); - } + plugin_dispatch_values (&vl); } -static void fscache_read_stats_file(FILE *fh){ - int forcount = 0; - int count = 0; - int start = 0; - int numfields = 0; - int valuecounter = 0; - char filebuffer[BUFSIZE]; - char valuebuffer[BUFSIZE]; - char valuename[BUFSIZE]; - char valuevalue[BUFSIZE]; - char sectionbuffer[BUFSIZE]; - char tempstring[BUFSIZE]; - char *ptrfilebuffer = filebuffer; - char *position = NULL; - char *fields[fscache_number_of_values]; - struct fscache_values values[fscache_number_of_values]; +static void fscache_read_stats_file (FILE *fh) +{ + char section[DATA_MAX_NAME_LEN]; + size_t section_len; + + char linebuffer[BUFSIZE]; + +/* + * cat /proc/fs/fscache/stats + * FS-Cache statistics + * Cookies: idx=2 dat=0 spc=0 + * Objects: alc=0 nal=0 avl=0 ded=0 + * ChkAux : non=0 ok=0 upd=0 obs=0 + * Pages : mrk=0 unc=0 + * Acquire: n=2 nul=0 noc=0 ok=2 nbf=0 oom=0 + * Lookups: n=0 neg=0 pos=0 crt=0 + * Updates: n=0 nul=0 run=0 + * Relinqs: n=0 nul=0 wcr=0 + * AttrChg: n=0 ok=0 nbf=0 oom=0 run=0 + * Allocs : n=0 ok=0 wt=0 nbf=0 + * Allocs : ops=0 owt=0 + * Retrvls: n=0 ok=0 wt=0 nod=0 nbf=0 int=0 oom=0 + * Retrvls: ops=0 owt=0 + * Stores : n=0 ok=0 agn=0 nbf=0 oom=0 + * Stores : ops=0 run=0 + * Ops : pend=0 run=0 enq=0 + * Ops : dfr=0 rel=0 gc=0 + */ /* Read file line by line */ - while( fgets( filebuffer, BUFSIZE, fh)!= NULL){ - /*skip first line and split file on : */ - if (count != 0){ - position = strchr(filebuffer,':'); - start = strlen(filebuffer) - 1; - filebuffer[start] = '\0'; - /* : is located at value 8, +1 to remove space */ - strncpy(valuebuffer, ptrfilebuffer+9, start); - /*store section info for later */ - strncpy(sectionbuffer, ptrfilebuffer, position - filebuffer); - position = strchr(sectionbuffer, ' '); - if (position != NULL){ - sectionbuffer[position-sectionbuffer] = '\0'; - } - - /*split rest of line by space and then split that via =*/ - numfields = strsplit ( valuebuffer, fields, - fscache_number_of_values); - for( forcount = 0; forcount < numfields; forcount++ ){ - char *field = fields[forcount]; - memset(valuename,'\0',sizeof(valuename)); - position = strchr(field, '='); - /* Test to see if we actually have a metric to split on - * and assign the values to the struct array */ - if (position != NULL){ - strncpy(valuename, field, position - field); - strncpy(valuevalue, field + (position - field + 1), - strlen(field)); - memset(tempstring,'\0',sizeof(tempstring)); - strncat(tempstring,sectionbuffer,sizeof(tempstring)); - strncat(tempstring,"_",1); - strncat(tempstring,valuename, sizeof(tempstring)); - memset(values[valuecounter].name,'\0', - sizeof(values[valuecounter].name)); - strncpy(values[valuecounter].name,tempstring, - sizeof(values[valuecounter].name)); - values[valuecounter].value = atoll(valuevalue); - } - valuecounter++; - } + while (fgets (linebuffer, sizeof (linebuffer), fh) != NULL) + { + char *lineptr; + char *fields[32]; + int fields_num; + int i; + + /* Find the colon and replace it with a null byte */ + lineptr = strchr (linebuffer, ':'); + if (lineptr == NULL) + continue; + *lineptr = 0; + lineptr++; + + /* Copy and clean up the section name */ + sstrncpy (section, linebuffer, sizeof (section)); + section_len = strlen (section); + while ((section_len > 0) && isspace ((int) section[section_len - 1])) + { + section_len--; + section[section_len] = 0; } - count++; - } - fscache_submit(values); -} + if (section_len <= 0) + continue; + + fields_num = strsplit (lineptr, fields, STATIC_ARRAY_SIZE (fields)); + if (fields_num <= 0) + continue; + + for (i = 0; i < fields_num; i++) + { + char *field_name; + char *field_value_str; + char *endptr; + counter_t field_value_cnt; + + field_name = fields[i]; + assert (field_name != NULL); + + field_value_str = strchr (field_name, '='); + if (field_value_str == NULL) + continue; + *field_value_str = 0; + field_value_str++; + + errno = 0; + endptr = NULL; + field_value_cnt = (counter_t) strtoull (field_value_str, + &endptr, /* base = */ 10); + if ((errno != 0) || (endptr == field_value_str)) + continue; + + fscache_submit (section, field_name, field_value_cnt); + } + } /* while (fgets) */ +} /* void fscache_read_stats_file */ static int fscache_read (void){ FILE *fh; @@ -223,3 +232,4 @@ void module_register (void) plugin_register_read ("fscache", fscache_read); } /* void module_register */ +/* vim: set sw=4 sts=4 et : */ -- 2.30.2