[Xenomai-git] Alexis Berlemont : analogy: various basic bug fixes in wf_cmd_write

[GIT version control]

Module: xenomai-abe
Branch: analogy
Commit: 3dcd59977e502b01cc81c363e49ee751d2f00603
URL:    
http://git.xenomai.org/?p=xenomai-abe.git;a=commit;h=3dcd59977e502b01cc81c363e49ee751d2f00603

Author: Alexis Berlemont <alexis.berlem...@gmail.com>
Date:   Sun Mar  6 00:51:46 2011 +0100

analogy: various basic bug fixes in wf_cmd_write

- Properly set the default ranges values
- Fix return code after reading stdin data
- Wait 1s after writing the data and before leaving

---

 src/utils/analogy/wf_cmd_write.c |   22 +++++++++++++++-------
 1 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/src/utils/analogy/wf_cmd_write.c b/src/utils/analogy/wf_cmd_write.c
index 38e0c29..6a4d507 100644
--- a/src/utils/analogy/wf_cmd_write.c
+++ b/src/utils/analogy/wf_cmd_write.c
@@ -263,7 +263,7 @@ int init_config(struct config *cfg, int argc, char *argv[])
 
        memset(cfg, 0, sizeof(struct config));
        cfg->str_chans = "0,1";
-       cfg->str_chans = "0,5,V";
+       cfg->str_ranges = "0,5,V";
        cfg->filename = "analogy0";     
        cfg->input = stdin;
        cfg->dsc.fd = -1;
@@ -364,8 +364,9 @@ int process_stdin(struct config *cfg)
 
                /* Data from stdin are supposed to be double values
                   coming from wf_generate... */
+
                err = fread(&value, sizeof(double), 1, cfg->input);
-               if (err != 0 && !feof(cfg->input)) {
+               if (err != 1 && !feof(cfg->input)) {
                        err = -errno;
                        fprintf(stderr, 
                                "cmd_write: stdin IO error (err=%d)\n", err);
@@ -392,7 +393,10 @@ int process_stdin(struct config *cfg)
                filled ++;
        }
 
-       if (filled) {
+out:
+
+       if (err >= 0 && filled) {
+
                err = a4l_async_write(&cfg->dsc, 
                                      cfg->buffer, 
                                      filled * scan_size, A4L_INFINITE);
@@ -400,10 +404,10 @@ int process_stdin(struct config *cfg)
                        fprintf(stderr, 
                                "cmd_write: a4l_async_write failed (err=%d)\n",
                                err);
-       }
+       } else if (err >= 0 && !filled)
+               err = -ENOENT;
        
-out:
-       return err;
+       return err < 0 ? err : 0;
 }
 
 int init_acquisition(struct config *cfg)
@@ -476,8 +480,12 @@ int main(int argc, char *argv[])
 
        while ((err = process_stdin(&cfg)) == 0);
 
+       err = (err == -ENOENT) ? 0 : err;
+
+       sleep(1);
+
 out:
        cleanup_config(&cfg);
        
-       return err;
+       return err < 0 ? 1 : 0;
 }


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