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Add support for filter parameters

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The filter parameter provides a mechanism to pass some additional
information, needed to configure the I/O stream, back to the caller.
This commit is contained in:
Jef Driesen 2020-04-29 18:56:13 +02:00
parent edacbb2f13
commit 57f0ce6d79
7 changed files with 42 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/bluetooth.c
View File

@ -456,7 +456,7 @@ dc_bluetooth_iterator_next (dc_iterator_t *abstract, void *out)
INFO (abstract->context, "Discover: address=" DC_ADDRESS_FORMAT ", name=%s",
address, name ? name : "");
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_BLUETOOTH, name)) {
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_BLUETOOTH, name, NULL)) {
continue;
}

2
src/descriptor-private.h
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@ -34,7 +34,7 @@ typedef struct dc_usb_desc_t {
} dc_usb_desc_t;
int
dc_descriptor_filter (dc_descriptor_t *descriptor, dc_transport_t transport, const void *userdata);
dc_descriptor_filter (dc_descriptor_t *descriptor, dc_transport_t transport, const void *userdata, void *params);
#ifdef __cplusplus
}

59
src/descriptor.c
View File

@ -36,21 +36,31 @@
values, \
C_ARRAY_SIZE(values) - isnullterminated, \
C_ARRAY_ITEMSIZE(values), \
match)
match, \
NULL, NULL, 0)
#define DC_FILTER_INTERNAL_WITH_PARAMS(key, values, isnullterminated, match, params_dst, params_src) \
dc_filter_internal( \
key, \
values, \
C_ARRAY_SIZE(values) - isnullterminated, \
C_ARRAY_ITEMSIZE(values), \
match, \
params_dst, params_src, sizeof *(params_src))
typedef int (*dc_match_t)(const void *, const void *);
typedef int (*dc_filter_t) (dc_transport_t transport, const void *userdata);
typedef int (*dc_filter_t) (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_uwatec (dc_transport_t transport, const void *userdata);
static int dc_filter_suunto (dc_transport_t transport, const void *userdata);
static int dc_filter_shearwater (dc_transport_t transport, const void *userdata);
static int dc_filter_hw (dc_transport_t transport, const void *userdata);
static int dc_filter_tecdiving (dc_transport_t transport, const void *userdata);
static int dc_filter_mares (dc_transport_t transport, const void *userdata);
static int dc_filter_divesystem (dc_transport_t transport, const void *userdata);
static int dc_filter_oceanic (dc_transport_t transport, const void *userdata);
static int dc_filter_mclean (dc_transport_t transport, const void *userdata);
static int dc_filter_uwatec (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_suunto (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_shearwater (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_hw (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_tecdiving (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_mares (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_divesystem (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_oceanic (dc_transport_t transport, const void *userdata, void *params);
static int dc_filter_mclean (dc_transport_t transport, const void *userdata, void *params);
static dc_status_t dc_descriptor_iterator_next (dc_iterator_t *iterator, void *item);
@ -463,13 +473,16 @@ dc_match_oceanic (const void *key, const void *value)
}
static int
dc_filter_internal (const void *key, const void *values, size_t count, size_t size, dc_match_t match)
dc_filter_internal (const void *key, const void *values, size_t count, size_t size, dc_match_t match, void *params_dst, const void *params_src, size_t params_size)
{
if (key == NULL)
return 0;
for (size_t i = 0; i < count; ++i) {
if (match (key, (const unsigned char *) values + i * size)) {
if (params_src && params_dst) {
memcpy (params_dst, params_src, params_size);
}
return 1;
}
}
@ -484,7 +497,7 @@ static const char * const rfcomm[] = {
NULL
};
static int dc_filter_uwatec (dc_transport_t transport, const void *userdata)
static int dc_filter_uwatec (dc_transport_t transport, const void *userdata, void *params)
{
static const char * const irda[] = {
"Aladin Smart Com",
@ -519,7 +532,7 @@ static int dc_filter_uwatec (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_suunto (dc_transport_t transport, const void *userdata)
static int dc_filter_suunto (dc_transport_t transport, const void *userdata, void *params)
{
static const dc_usb_desc_t usbhid[] = {
{0x1493, 0x0030}, // Eon Steel
@ -541,7 +554,7 @@ static int dc_filter_suunto (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_hw (dc_transport_t transport, const void *userdata)
static int dc_filter_hw (dc_transport_t transport, const void *userdata, void *params)
{
static const char * const bluetooth[] = {
"OSTC",
@ -557,7 +570,7 @@ static int dc_filter_hw (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_shearwater (dc_transport_t transport, const void *userdata)
static int dc_filter_shearwater (dc_transport_t transport, const void *userdata, void *params)
{
static const char * const bluetooth[] = {
"Predator",
@ -577,7 +590,7 @@ static int dc_filter_shearwater (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_tecdiving (dc_transport_t transport, const void *userdata)
static int dc_filter_tecdiving (dc_transport_t transport, const void *userdata, void *params)
{
static const char * const bluetooth[] = {
"DiveComputer",
@ -592,7 +605,7 @@ static int dc_filter_tecdiving (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_mares (dc_transport_t transport, const void *userdata)
static int dc_filter_mares (dc_transport_t transport, const void *userdata, void *params)
{
static const char * const bluetooth[] = {
"Mares bluelink pro",
@ -606,7 +619,7 @@ static int dc_filter_mares (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_divesystem (dc_transport_t transport, const void *userdata)
static int dc_filter_divesystem (dc_transport_t transport, const void *userdata, void *params)
{
static const char * const bluetooth[] = {
"DS",
@ -619,7 +632,7 @@ static int dc_filter_divesystem (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_oceanic (dc_transport_t transport, const void *userdata)
static int dc_filter_oceanic (dc_transport_t transport, const void *userdata, void *params)
{
static const unsigned int model[] = {
0x4552, // Oceanic Pro Plus X
@ -641,7 +654,7 @@ static int dc_filter_oceanic (dc_transport_t transport, const void *userdata)
return 1;
}
static int dc_filter_mclean(dc_transport_t transport, const void *userdata)
static int dc_filter_mclean(dc_transport_t transport, const void *userdata, void *params)
{
static const char * const bluetooth[] = {
"McLean Extreme",
@ -748,10 +761,10 @@ dc_descriptor_get_transports (dc_descriptor_t *descriptor)
}
int
dc_descriptor_filter (dc_descriptor_t *descriptor, dc_transport_t transport, const void *userdata)
dc_descriptor_filter (dc_descriptor_t *descriptor, dc_transport_t transport, const void *userdata, void *params)
{
if (descriptor == NULL || descriptor->filter == NULL)
return 1;
return descriptor->filter (transport, userdata);
return descriptor->filter (transport, userdata, params);
}

2
src/irda.c
View File

@ -231,7 +231,7 @@ dc_irda_iterator_new (dc_iterator_t **out, dc_context_t *context, dc_descriptor_
INFO (context, "Discover: address=%08x, name=%s, charset=%02x, hints=%04x",
address, name, charset, hints);
if (!dc_descriptor_filter (descriptor, DC_TRANSPORT_IRDA, name)) {
if (!dc_descriptor_filter (descriptor, DC_TRANSPORT_IRDA, name, NULL)) {
continue;
}

2
src/serial_posix.c
View File

@ -230,7 +230,7 @@ dc_serial_iterator_next (dc_iterator_t *abstract, void *out)
return DC_STATUS_NOMEMORY;
}
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_SERIAL, filename)) {
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_SERIAL, filename, NULL)) {
continue;
}

2
src/serial_win32.c
View File

@ -226,7 +226,7 @@ dc_serial_iterator_next (dc_iterator_t *abstract, void *out)
// Null terminate the string.
data[data_len] = 0;
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_SERIAL, data)) {
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_SERIAL, data, NULL)) {
continue;
}

2
src/usbhid.c
View File

@ -435,7 +435,7 @@ dc_usbhid_iterator_next (dc_iterator_t *abstract, void *out)
}
dc_usb_desc_t usb = {dev.idVendor, dev.idProduct};
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_USBHID, &usb)) {
if (!dc_descriptor_filter (iterator->descriptor, DC_TRANSPORT_USBHID, &usb, NULL)) {
continue;
}