diff options
| author | Thomas White <taw@physics.org> | 2011-01-14 17:24:26 +0100 |
|---|---|---|
| committer | Thomas White <taw@physics.org> | 2012-02-22 15:27:10 +0100 |
| commit | 9d3389752cd074534f1d9e2576366c155b563206 (patch) | |
| tree | 3302cea94e85e39d4f51384e4909692bdb245af3 /src/mosflm.c | |
| parent | 356f2e554b9f0777eaa216684896a95a0d67b326 (diff) | |
Run MOSFLM in a subprocess to avoid blocking SIGCHLD
Diffstat (limited to 'src/mosflm.c')
| -rw-r--r-- | src/mosflm.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/src/mosflm.c b/src/mosflm.c index 177ad87c..6cf29636 100644 --- a/src/mosflm.c +++ b/src/mosflm.c @@ -20,7 +20,9 @@ #include <stdio.h> #include <math.h> #include <string.h> - +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> #include "image.h" #include "mosflm.h" @@ -29,7 +31,6 @@ #include "peaks.h" - /* todo @@ -230,6 +231,8 @@ void run_mosflm(struct image *image, UnitCell *cell) double wavelength; /* angstrom */ char newmatfile[128]; int fail; + pid_t pid; + int r; write_spt(image); write_img(image); /* dummy image */ @@ -275,11 +278,21 @@ void run_mosflm(struct image *image, UnitCell *cell) remove(newmatfile); /* Run the mosflm script */ - fail = system(mos_cmd); - if (fail) { - ERROR("mosflm execution failed.\n"); - return; + pid = fork(); + if ( !( (pid != 0) && (pid != -1) ) ) { + if ( pid == -1 ) { + ERROR("fork() failed.\n"); + } else { + + /* Forked successfully, child process */ + if ( system(mos_cmd) ) { + ERROR("MOSFLM execution failed.\n"); + return; + } + + } } + waitpid(pid, &r, 0); /* Read the mosflm NEWMAT file and set cell candidate */ /* Existence of this file means possible success. Pretty shady. */ @@ -288,8 +301,4 @@ void run_mosflm(struct image *image, UnitCell *cell) printf("Failed to read mosflm NEWMAT file.\n"); return; } - - - - return; } |