mirror of
https://github.com/netfun2000/lcd4linux.git
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[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
This commit is contained in:
139
plugin_meminfo.c
139
plugin_meminfo.c
@@ -1,4 +1,4 @@
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/* $Id: plugin_meminfo.c,v 1.11 2005/01/18 06:30:23 reinelt Exp $
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/* $Id: plugin_meminfo.c,v 1.12 2005/05/08 04:32:44 reinelt Exp $
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*
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* plugin for /proc/meminfo parsing
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*
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@@ -23,6 +23,9 @@
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*
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*
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* $Log: plugin_meminfo.c,v $
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* Revision 1.12 2005/05/08 04:32:44 reinelt
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* CodingStyle added and applied
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*
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* Revision 1.11 2005/01/18 06:30:23 reinelt
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* added (C) to all copyright statements
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*
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@@ -102,78 +105,88 @@
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static HASH MemInfo;
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static FILE *stream = NULL;
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static int parse_meminfo (void)
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static int parse_meminfo(void)
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{
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int age;
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/* reread every 10 msec only */
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age=hash_age(&MemInfo, NULL);
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if (age>0 && age<=10) return 0;
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if (stream==NULL) stream=fopen("/proc/meminfo", "r");
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if (stream==NULL) {
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error ("fopen(/proc/meminfo) failed: %s", strerror(errno));
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return -1;
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}
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rewind(stream);
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while (!feof(stream)) {
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char buffer[256];
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char *c, *key, *val;
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fgets (buffer, sizeof(buffer), stream);
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c=strchr(buffer, ':');
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if (c==NULL) continue;
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key=buffer; val=c+1;
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/* strip leading blanks from key */
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while (isspace(*key)) *key++='\0';
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/* strip trailing blanks from key */
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do *c='\0'; while (isspace(*--c));
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/* strip leading blanks from value */
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while (isspace(*val)) *val++='\0';
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/* strip trailing blanks from value */
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for (c=val; *c!='\0';c++);
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while (isspace(*--c)) *c='\0';
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/* skip lines that do not end with " kB" */
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if (*c=='B' && *(c-1)=='k' && *(c-2)==' ') {
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/* strip trailing " kB" from value */
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*(c-2)='\0';
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/* add entry to hash table */
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hash_put (&MemInfo, key, val);
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int age;
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/* reread every 10 msec only */
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age = hash_age(&MemInfo, NULL);
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if (age > 0 && age <= 10)
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return 0;
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if (stream == NULL)
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stream = fopen("/proc/meminfo", "r");
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if (stream == NULL) {
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error("fopen(/proc/meminfo) failed: %s", strerror(errno));
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return -1;
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}
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}
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return 0;
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}
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static void my_meminfo (RESULT *result, RESULT *arg1)
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rewind(stream);
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while (!feof(stream)) {
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char buffer[256];
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char *c, *key, *val;
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fgets(buffer, sizeof(buffer), stream);
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c = strchr(buffer, ':');
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if (c == NULL)
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continue;
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key = buffer;
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val = c + 1;
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/* strip leading blanks from key */
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while (isspace(*key))
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*key++ = '\0';
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/* strip trailing blanks from key */
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do
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*c = '\0';
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while (isspace(*--c));
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/* strip leading blanks from value */
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while (isspace(*val))
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*val++ = '\0';
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/* strip trailing blanks from value */
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for (c = val; *c != '\0'; c++);
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while (isspace(*--c))
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*c = '\0';
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/* skip lines that do not end with " kB" */
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if (*c == 'B' && *(c - 1) == 'k' && *(c - 2) == ' ') {
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/* strip trailing " kB" from value */
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*(c - 2) = '\0';
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/* add entry to hash table */
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hash_put(&MemInfo, key, val);
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}
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}
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return 0;
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}
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static void my_meminfo(RESULT * result, RESULT * arg1)
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{
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char *key, *val;
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if (parse_meminfo()<0) {
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SetResult(&result, R_STRING, "");
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return;
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}
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key=R2S(arg1);
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val=hash_get(&MemInfo, key, NULL);
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if (val==NULL) val="";
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SetResult(&result, R_STRING, val);
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char *key, *val;
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if (parse_meminfo() < 0) {
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SetResult(&result, R_STRING, "");
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return;
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}
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key = R2S(arg1);
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val = hash_get(&MemInfo, key, NULL);
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if (val == NULL)
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val = "";
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SetResult(&result, R_STRING, val);
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}
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int plugin_init_meminfo (void)
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int plugin_init_meminfo(void)
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{
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hash_create(&MemInfo);
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AddFunction ("meminfo", 1, my_meminfo);
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return 0;
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hash_create(&MemInfo);
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AddFunction("meminfo", 1, my_meminfo);
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return 0;
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}
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void plugin_exit_meminfo(void)
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void plugin_exit_meminfo(void)
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{
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if (stream != NULL) {
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fclose(stream);
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stream=NULL;
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}
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hash_destroy(&MemInfo);
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if (stream != NULL) {
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fclose(stream);
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stream = NULL;
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}
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hash_destroy(&MemInfo);
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}
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