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Limiter fd_limit_;		Limiter fd_limit_;
};		};

// Return the maximum number of concurrent mmaps.		// Return the maximum number of concurrent mmaps.
static int MaxMmaps() {		static int MaxMmaps() {
if (mmap_limit >= 0) {		if (mmap_limit >= 0) {
return mmap_limit;		return mmap_limit;
}		}
// Up to 1000 mmaps for 64-bit binaries; none for smaller pointer sizes.		// Up to 4096 mmaps for 64-bit binaries; none for smaller pointer sizes.
mmap_limit = sizeof(void*) >= 8 ? 1000 : 0;		mmap_limit = sizeof(void*) >= 8 ? 4096 : 0;
return mmap_limit;		return mmap_limit;
}		}

// Return the maximum number of read-only files to keep open.		// Return the maximum number of read-only files to keep open.
static intptr_t MaxOpenFiles() {		static intptr_t MaxOpenFiles() {
if (open_read_only_file_limit >= 0) {		if (open_read_only_file_limit >= 0) {
return open_read_only_file_limit;		return open_read_only_file_limit;
}		}
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