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webp-src/install-sh  view on Meta::CPAN

    else
      # Rename the file to the real destination.
      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||

      # The rename failed, perhaps because mv can't rename something else
      # to itself, or perhaps because mv is so ancient that it does not
      # support -f.
      {
	# Now remove or move aside any old file at destination location.
	# We try this two ways since rm can't unlink itself on some
	# systems and the destination file might be busy for other
	# reasons.  In this case, the final cleanup might fail but the new
	# file should still install successfully.
	{
	  test ! -f "$dst" ||
	  $doit $rmcmd -f "$dst" 2>/dev/null ||
	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
	  } ||
	  { echo "$0: cannot unlink or rename $dst" >&2
	    (exit 1); exit 1

webp-src/src/utils/thread.h  view on Meta::CPAN

#include <pthread.h>

#endif    /* _WIN32 */
#endif    /* WEBP_USE_THREAD */

// State of the worker thread object
typedef enum {
  NOT_OK = 0,   // object is unusable
  OK,           // ready to work
  WORK          // busy finishing the current task
} WebPWorkerStatus;

// Function to be called by the worker thread. Takes two opaque pointers as
// arguments (data1 and data2), and should return false in case of error.
typedef int (*WebPWorkerHook)(void*, void*);

// Synchronize object used to launch job in the worker thread
typedef struct {
#if WEBP_USE_THREAD
  pthread_mutex_t mutex_;