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libei: better device state debugging

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2020-09-24 09:26:33 +10:00
parent f27414d778
commit 8eb7dde2cf
1 changed files with 28 additions and 4 deletions
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32
src/libei-device.c
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@ -33,6 +33,30 @@
#include "libei-private.h" #include "libei-private.h"
static const char *
ei_device_state_to_string(enum ei_device_state state)
{
switch (state) {
CASE_RETURN_STRING(EI_DEVICE_STATE_NEW);
CASE_RETURN_STRING(EI_DEVICE_STATE_CONNECTING);
CASE_RETURN_STRING(EI_DEVICE_STATE_SUSPENDED);
CASE_RETURN_STRING(EI_DEVICE_STATE_RESUMED);
CASE_RETURN_STRING(EI_DEVICE_STATE_REMOVED);
}
assert(!"Unhandled device state");
}
static void
ei_device_set_state(struct ei_device *device,
enum ei_device_state state)
{
enum ei_device_state old_state = device->state;
device->state = state;
log_debug(ei_device_get_context(device), "device %d: %s → %s\n",
device->id, ei_device_state_to_string(old_state),
ei_device_state_to_string(state));
}
static void static void
ei_device_destroy(struct ei_device *device) ei_device_destroy(struct ei_device *device)
{ {
@ -188,7 +212,7 @@ _public_ void
ei_device_add(struct ei_device *device) ei_device_add(struct ei_device *device)
{ {
ei_add_device(device); ei_add_device(device);
device->state = EI_DEVICE_STATE_CONNECTING; ei_device_set_state(device, EI_DEVICE_STATE_CONNECTING);
} }
_public_ void _public_ void
@ -197,20 +221,20 @@ ei_device_remove(struct ei_device *device)
if (device->state == EI_DEVICE_STATE_REMOVED) if (device->state == EI_DEVICE_STATE_REMOVED)
return; return;
device->state = EI_DEVICE_STATE_REMOVED; ei_device_set_state(device, EI_DEVICE_STATE_REMOVED);
ei_remove_device(device); ei_remove_device(device);
} }
void void
ei_device_resumed(struct ei_device *device) ei_device_resumed(struct ei_device *device)
{ {
device->state = EI_DEVICE_STATE_RESUMED; ei_device_set_state(device, EI_DEVICE_STATE_RESUMED);
} }
void void
ei_device_suspended(struct ei_device *device) ei_device_suspended(struct ei_device *device)
{ {
device->state = EI_DEVICE_STATE_SUSPENDED; ei_device_set_state(device, EI_DEVICE_STATE_SUSPENDED);
} }
void void