diff options
| author |  Berthold Stoeger <bstoeger@mail.tuwien.ac.at> | 2018-05-05 19:26:48 +0200 |
|---|---|---|
| committer |  Lubomir I. Ivanov <neolit123@gmail.com> | 2018-05-07 13:11:53 +0300 |
| commit | 920ff15f7160cfa6ed8d8d81e0c156dd1d7b27c6 (patch) | |
| tree | 6764713b16bf31fc7a2c17f837e5b038a3427e4f /core/device.h | |
| parent | 450f0992a09b5ef8cc1aa1df5eafd6826e03c4b8 (diff) | |
| download | subsurface-920ff15f7160cfa6ed8d8d81e0c156dd1d7b27c6.tar.gz | |
Planner: don't return static data in fake_dc()
fake_dc() used to return a statically allocated dc with statically
allocated samples. This is of course a questionable practice in
the light of multi-threading / resource ownership. Once these
problems were recognized, the parameter "alloc" was added. If set
to true, the function would still return a statically allocated
dc, but heap-allocated samples, which could then be copied in
a different dc.
All in all an ownership nightmare and a recipie for disaster.
The returned static dc was only used as a pointer to the samples
anyway. There are four callers of fake_dc() and they all have access
to a dc-structure without samples. Therefore, change the semantics
of fake_dc() to fill out the passed in dc. If the caller does
not care about the samples, it can simply reset the sample number
to zero after work.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Diffstat (limited to 'core/device.h')
| -rw-r--r-- | core/device.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/core/device.h b/core/device.h index df069a1d5..14a80144c 100644 --- a/core/device.h +++ b/core/device.h @@ -7,7 +7,7 @@ extern "C" { #endif -extern struct divecomputer *fake_dc(struct divecomputer *dc, bool alloc); +extern void fake_dc(struct divecomputer *dc); extern void set_dc_deviceid(struct divecomputer *dc, unsigned int deviceid); extern void create_device_node(const char *model, uint32_t deviceid, const char *serial, const char *firmware, const char *nickname); extern void call_for_each_dc(void *f, void (*callback)(void *, const char *, uint32_t, |