mhu/gds-render
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Work around issue #16. This is not very beatiful.

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This commit is contained in:
Mario Hüttel 2019-05-30 14:49:35 +02:00
parent 2d3241d8b7
commit dadafa43a3
1 changed files with 26 additions and 0 deletions
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26
cairo-renderer/cairo-output.c
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@ -33,6 +33,8 @@
#include <cairo-svg.h>
#include <gds-render/cairo-renderer/cairo-output.h>
#include <sys/wait.h>
#include <unistd.h>
/**
* @brief The cairo_layer struct
@ -190,12 +192,26 @@ void cairo_render_cell_to_vector_file(struct gds_cell *cell, GList *layer_infos,
int i;
double rec_x0, rec_y0, rec_width, rec_height;
double xmin = INT32_MAX, xmax = INT32_MIN, ymin = INT32_MAX, ymax = INT32_MIN;
pid_t process_id;
if (pdf_file == NULL && svg_file == NULL) {
/* No output specified */
return;
}
/* Fork to a new child process. This ensures the memory leaks (see issue #16) in Cairo don't
* brick everything.
*
* And by the way: This now bricks all Windows compatibility. Deal with it.
*/
process_id = fork();
if (process_id < 0) {
/* Well... shit... We have to run it in our process. */
} else if (process_id > 0) {
/* Woohoo... Successfully dumped the shitty code to a unknowing victim */
goto ret_parent;
}
layers = (struct cairo_layer *)calloc(MAX_LAYERS, sizeof(struct cairo_layer));
/* Clear layers */
@ -310,6 +326,16 @@ ret_clear_layers:
free(layers);
printf("cairo export finished. It might still be buggy!\n");
/* If forked, suspend process */
if (process_id == 0)
exit(0);
/* fork didn't work. Just return here */
return;
ret_parent:
waitpid(process_id, NULL, 0);
return;
}
/** @} */