Re: [PLUG] BSD total free memory in C ?

[Jeff Weisberg <jaw+plug@tcp4me.com>]

| algorithm that delete old cached data when the total free memory becomes
| low. To get the total (including free swap) free memory I read /proc/meminfo. 
| I have no knowledge of BSD but IIRC there is no proc filesystem. 

there might be, there might not be.
it probably won't contain the number you're looking for.

| What would be the BSD way to get the quantity of free memory?

based on experience, but with no actual experimental data
to back myself up, I would doubt that using total free memory
to determine the cache size is the optimal cache sizing
algorithm. 

| Ideas and of course C code welcome.

well, many programs use the cache-sizing algorithm
'read a value from a config file'.

untested, and could be made much better:

	FILE *f;
	char line[MAXLEN], *v;
	
	if( (f=fopen( ".gphoto", "r" ))<0 ){
		perror("file is stubborn and refuses to open");
		exit(1);
	}
	while( fgets(line, sizeof(line), f) ){
		if( strstr(line, "cache-size:") ){
			v = strchr(line, ':');
			while( !isdigit(*v) ){
				v++;
			}
			cachesize = atoi( v );
		}
	}
	fclose(f);



	--jeff

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