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fix pdfium mutex init 

We need to make the mutex in _class_init, not _build, since we can lock
even if _build is not called.
This commit is contained in:
John Cupitt 2020-10-16 15:38:36 +01:00
parent 47b04c9da6
commit 1590d418b9
1 changed files with 16 additions and 4 deletions
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20
libvips/foreign/pdfiumload.c
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@ -202,8 +202,6 @@ vips_pdfium_init_cb( void *dummy )
{
FPDF_LIBRARY_CONFIG config;
vips_pdfium_mutex = vips_g_mutex_new();
config.version = 2;
config.m_pUserFontPaths = NULL;
config.m_pIsolate = NULL;
@ -448,7 +446,6 @@ vips_foreign_load_pdf_generate( VipsRegion *or,
void *seq, void *a, void *b, gboolean *stop )
{
VipsForeignLoadPdf *pdf = (VipsForeignLoadPdf *) a;
VipsForeignLoad *load = (VipsForeignLoad *) pdf;
VipsRect *r = &or->valid;
int top;
@ -505,7 +502,7 @@ vips_foreign_load_pdf_generate( VipsRegion *or,
/* PDFium writes BRGA, we must swap.
*
* FIXME ... this is a bit slow.
* FIXME ... this is slow.
*/
for( y = 0; y < r->height; y++ ) {
VipsPel *p;
@ -559,13 +556,28 @@ vips_foreign_load_pdf_load( VipsForeignLoad *load )
return( 0 );
}
static void *
vips_foreign_load_pdf_once_init( void *client )
{
/* We must make the mutex on class init (not _build) since we
* can lock ebven if build is not called.
*/
vips_pdfium_mutex = vips_g_mutex_new();
return( NULL );
}
static void
vips_foreign_load_pdf_class_init( VipsForeignLoadPdfClass *class )
{
static GOnce once = G_ONCE_INIT;
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
VIPS_ONCE( &once, vips_foreign_load_pdf_once_init, NULL );
gobject_class->dispose = vips_foreign_load_pdf_dispose;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;