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src/driver/pictureviewer/pictureviewer.cpp add bufferram and cached to calc freemem

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Origin commit data
------------------
Commit: 1f0a1bfdf2
Author: Jacek Jendrzej <overx300@gmail.com>
Date: 2017-06-13 (Tue, 13 Jun 2017)

Origin message was:
------------------
src/driver/pictureviewer/pictureviewer.cpp add bufferram and cached to calc freemem
This commit is contained in:
Jacek Jendrzej
2017-06-13 13:34:17 +02:00
parent f67fafd768
commit 3acaf2653e
1 changed files with 28 additions and 2 deletions
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30
src/driver/pictureviewer/pictureviewer.cpp
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@@ -854,12 +854,38 @@ unsigned char * CPictureViewer::ResizeA(unsigned char *orgin, int ox, int oy, in
return int_Resize(orgin, ox, oy, dx, dy, COLOR, NULL, true);
}
static size_t getCachedMemSize(void)
{
FILE *procmeminfo = fopen("/proc/meminfo", "r");
size_t cached = 0;
if (procmeminfo) {
char buf[80] = {0}, a[80] = {0};
size_t v = 0;
while (fgets(buf, sizeof(buf), procmeminfo)) {
char unit[10];
*unit = 0;
if ((3 == sscanf(buf, "%[^:]: %llu %s", a, &v, unit))
|| (2 == sscanf(buf, "%[^:]: %llu", a, &v))) {
if (*unit == 'k')
v <<= 10;
if (!strcasecmp(a, "Cached")){
cached = v;
break;
}
}
}
fclose(procmeminfo);
}
return cached;
}
bool CPictureViewer::checkfreemem(size_t bufsize)
{
struct sysinfo info;
sysinfo( &info );
if(bufsize + 4096 > (size_t)info.freeram + (size_t)info.freeswap){
dprintf(DEBUG_NORMAL, "[CPictureViewer] [%s - %d] Error: Out of memory: need %zu > free %zu\n", __func__, __LINE__,bufsize,(size_t)info.freeram + (size_t)info.freeswap);
size_t cached = getCachedMemSize();
if(bufsize + sysconf(_SC_PAGESIZE) > (size_t)info.freeram + (size_t)info.freeswap + (size_t)info.bufferram + cached){
dprintf(DEBUG_NORMAL, "[CPictureViewer] [%s - %d] Error: Out of memory: need %zu > free %zu\n", __func__, __LINE__,bufsize,(size_t)info.freeram + (size_t)info.freeswap + (size_t)info.bufferram + cached);
return false;
}
return true;