Changeset d453a4a for src

Timestamp:

Jan 9, 2010, 5:03:11 PM (15 years ago)

Author:

Paul Brossier <piem@piem.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+

Children:

7581185

Parents:

066433d

Message:

src/spectral/fft.c: lock fftw plan creation (closes #9), thanks to Hedde Bosman

File:

• src/spectral/fft.c (modified) (4 diffs)

src/spectral/fft.c

@@ -28 +28 @@
  * c++ projects can still use their own complex definition. */
 #include <fftw3.h>
+#include <pthread.h>
 
 #ifdef HAVE_COMPLEX_H
@@ -73 +74 @@
 #endif /* HAVE_FFTW3F */
 
+// a global mutex for FFTW thread safety
+pthread_mutex_t aubio_fftw_mutex = PTHREAD_MUTEX_INITIALIZER;
+
 struct _aubio_fft_t {
   uint_t winsize;
@@ -91 +95 @@
   s->compspec = new_fvec(winsize);
   /* create plans */
+  pthread_mutex_lock(&aubio_fftw_mutex);
 #ifdef HAVE_COMPLEX_H
   s->fft_size = winsize/2 + 1;
@@ -102 +107 @@
   s->pbw = fftw_plan_r2r_1d(winsize, s->specdata, s->out, FFTW_HC2R, FFTW_ESTIMATE);
 #endif
+  pthread_mutex_unlock(&aubio_fftw_mutex);
   for (i = 0; i < s->winsize; i++) {
     s->in[i] = 0.;