Bug 591511 – hb-blob.c does not compile using mingw on windows
Only call mprotect() when available. For optimal performance, a win32 way to make memory writeable needs to be added.
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@ -28,8 +28,12 @@
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#include "hb-blob.h"
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#ifdef HAVE_MPROTECT
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include <sys/mman.h>
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#endif /* HAVE_MPROTECT */
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struct _hb_blob_t {
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hb_reference_count_t ref_count;
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@ -240,6 +244,7 @@ hb_blob_try_writeable_inplace (hb_blob_t *blob)
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hb_mutex_lock (blob->lock);
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#ifdef HAVE_MPROTECT
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if (blob->mode == HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITEABLE) {
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unsigned int pagesize, mask, length;
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const char *addr;
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@ -281,6 +286,9 @@ hb_blob_try_writeable_inplace (hb_blob_t *blob)
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addr, addr+length, length);
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#endif
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}
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#else /* !HAVE_MPROTECT */
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#warning "No way to make readonly memory writeable. This is suboptimal."
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#endif
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done:
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mode = blob->mode;
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