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Issue #1053 - Remove android support from XPCOM

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This commit is contained in:
Matt A. Tobin 2020-02-22 19:03:00 -05:00 • committed by Roy Tam
commit 26403f20ac
30 changed files with 27 additions and 476 deletions
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35
xpcom/base/nsMemoryImpl.cpp
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@ -14,16 +14,6 @@
#include "nsCOMPtr.h"
#include "mozilla/Services.h"
#ifdef ANDROID
#include <stdio.h>
// Minimum memory threshold for a device to be considered
// a low memory platform. This value has be in sync with
// Java's equivalent threshold, defined in
// mobile/android/base/util/HardwareUtils.java
#define LOW_MEMORY_THRESHOLD_KB (384 * 1024)
#endif
static nsMemoryImpl sGlobalMemory;
NS_IMPL_QUERY_INTERFACE(nsMemoryImpl, nsIMemory)
@ -37,31 +27,8 @@ nsMemoryImpl::HeapMinimize(bool aImmediate)
NS_IMETHODIMP
nsMemoryImpl::IsLowMemoryPlatform(bool* aResult)
{
#ifdef ANDROID
static int sLowMemory = -1; // initialize to unknown, lazily evaluate to 0 or 1
if (sLowMemory == -1) {
sLowMemory = 0; // assume "not low memory" in case file operations fail
*aResult = false;
// check if MemTotal from /proc/meminfo is less than LOW_MEMORY_THRESHOLD_KB
FILE* fd = fopen("/proc/meminfo", "r");
if (!fd) {
return NS_OK;
}
uint64_t mem = 0;
int rv = fscanf(fd, "MemTotal: %llu kB", &mem);
if (fclose(fd)) {
return NS_OK;
}
if (rv != 1) {
return NS_OK;
}
sLowMemory = (mem < LOW_MEMORY_THRESHOLD_KB) ? 1 : 0;
}
*aResult = (sLowMemory == 1);
#else
*aResult = false;
#endif
return NS_OK;
}