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author | Timo Dritschler <timo.dritschler@kit.edu> | 2015-06-16 17:25:08 +0200 |
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committer | Timo Dritschler <timo.dritschler@kit.edu> | 2015-06-16 17:25:08 +0200 |
commit | fa417b373e93903c8c41cdfd800a0311bc495e15 (patch) | |
tree | e262fea43ded5eaf69b2cf98e4ccee9c05173cd4 | |
parent | 9ea244a2a7a52495bf033dd9f1cca7c865baf200 (diff) | |
download | kiro-master.tar.gz kiro-master.tar.bz2 kiro-master.tar.xz kiro-master.zip |
Highlights:
- KiroSb: Added kiro_sb_get_dma_pointer interface
-rw-r--r-- | CMakeLists.txt | 2 | ||||
-rw-r--r-- | src/kiro-sb.c | 24 | ||||
-rw-r--r-- | src/kiro-sb.h | 25 |
3 files changed, 41 insertions, 10 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 3de92ab..e2f38af 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -5,7 +5,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR TRUE) set(TARNAME "kiro") set(LIBKIRO_VERSION_MAJOR "1") -set(LIBKIRO_VERSION_MINOR "2") +set(LIBKIRO_VERSION_MINOR "3") set(LIBKIRO_VERSION_PATCH "0") set(LIBKIRO_VERSION_RELEASE "9") set(LIBKIRO_VERSION_STRING "${LIBKIRO_VERSION_MAJOR}.${LIBKIRO_VERSION_MINOR}.${LIBKIRO_VERSION_PATCH}") diff --git a/src/kiro-sb.c b/src/kiro-sb.c index 6ec671c..3d6173f 100644 --- a/src/kiro-sb.c +++ b/src/kiro-sb.c @@ -274,15 +274,10 @@ kiro_sb_get_data (KiroSb *self) KiroSbPrivate *priv = KIRO_SB_GET_PRIVATE (self); struct KiroTrbInfo *header = kiro_trb_get_raw_buffer (priv->trb); - switch (header->offset) { - case 0: - return kiro_trb_get_element (priv->trb, 0); - break; - case 1: - return kiro_trb_get_element (priv->trb, 1); - break; - default: - return kiro_trb_get_element (priv->trb, -1); + if (header->offset > 0) { + return kiro_trb_get_element (priv->trb, 1); + } else { + return kiro_trb_get_element (priv->trb, 0); } } @@ -310,6 +305,17 @@ kiro_sb_push_dma (KiroSb *self) return kiro_trb_dma_push (priv->trb); } +void * +kiro_sb_get_dma_pointer (KiroSb *self) +{ + g_return_val_if_fail (self != NULL, NULL); + + KiroSbPrivate *priv = KIRO_SB_GET_PRIVATE (self); + g_return_val_if_fail (priv->initialized == 1, NULL); + + return kiro_trb_get_element (priv->trb, -1); +} + gboolean kiro_sb_clone (KiroSb *self, const gchar* address, const gchar* port) diff --git a/src/kiro-sb.h b/src/kiro-sb.h index a2b8604..32f1a48 100644 --- a/src/kiro-sb.h +++ b/src/kiro-sb.h @@ -340,6 +340,31 @@ gboolean kiro_sb_push (KiroSb *sb, void *data); */ void* kiro_sb_push_dma (KiroSb *sb); +/** + * kiro_sb_get_dma_pointer: + * @sb: (transfer none) The #KiroSb to get the data from + * + * Returns a pointer where the next element will be stored. + * This operation is only valid for a 'serving' #KiroSb. Calling this + * function on a 'cloning' #KiroSb will allways return a %NULL pointer. + * + * Returns: (transfer none) (type gulong): + * A pointer to the memory where the next element will be stored + * Note: + * This function can be used to preemtively write data to the @sb without + * advancing the internal buffer (no remote sync will occur). It is the users + * responsibility to ensure no more data is written to the pointed memory then + * was specified with the initial call to kiro_sb_serve or returned by + * kiro_sb_get_size. Under no circumstances might the returned pointer be + * freed by the user. Once the element has been written, you can use + * kiro_sb_push_dma() to advance the buffer, making the remote side aware of + * the new element. + * See also: + * kiro_sb_get_size, kiro_sb_serve + * + * Since: 1.3 + */ +void* kiro_sb_get_dma_pointer (KiroSb *sb); G_END_DECLS |