Module: sip-router Branch: master Commit: 15627cd0cb424d76eb266e66e51fe90a4ddefb71 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=15627cd… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: Wed Apr 21 12:53:03 2010 +0200 dset: exposed branch structure - added helper functions to allow branch attributes updates via PVs - related to FS#8 --- dset.c | 69 ++++++++++++++++++++++++++++++++++++++++++++------------------- dset.h | 36 +++++++++++++++++++++++++++++++++ 2 files changed, 84 insertions(+), 21 deletions(-) diff --git a/dset.c b/dset.c index e3dc844..8223615 100644 --- a/dset.c +++ b/dset.c @@ -55,27 +55,6 @@ #define Q_PARAM ">;q=" #define Q_PARAM_LEN (sizeof(Q_PARAM) - 1) -struct branch -{ - char uri[MAX_URI_SIZE]; - unsigned int len; - - /* Real destination of the request */ - char dst_uri[MAX_URI_SIZE]; - unsigned int dst_uri_len; - - /* Path set */ - char path[MAX_PATH_SIZE]; - unsigned int path_len; - - int q; /* Preference of the contact among - * contact within the array */ - struct socket_info* force_send_socket; - - /* Branch flags */ - flag_t flags; -}; - /* * Where we store URIs of additional transaction branches @@ -96,6 +75,54 @@ static qvalue_t ruri_q = Q_UNSPECIFIED; static flag_t ruri_bflags; +/*! \brief + * Return pointer to branch[idx] structure + * @param idx - branch index + * + * @return pointer to branch or NULL if invalid branch + */ +branch_t *get_sip_branch(int idx) +{ + if(nr_branches==0) + return NULL; + if(idx<0) + { + if(nr_branches + idx >= 0) + return &branches[nr_branches+idx]; + return NULL; + } + if(idx < nr_branches) + return &branches[idx]; + return 0; +} + +/*! \brief + * Drop branch[idx] + * @param idx - branch index + * + * @return 0 on success, -1 on error + */ +int drop_sip_branch(int idx) +{ + if(nr_branches==0 || idx>=nr_branches) + return 0; + if(idx<0 && nr_branches+idx<0) + return 0; + /* last branch */ + if(idx==nr_branches-1) + { + nr_branches--; + return 0; + } + if(idx<0) + idx = nr_branches+idx; + /* shift back one position */ + for(; idx<nr_branches-1; idx++) + memcpy(&branches[idx], &branches[idx+1], sizeof(branch_t)); + nr_branches--; + return 0; +} + static inline flag_t* get_bflags_ptr(unsigned int branch) { if (branch == 0) return &ruri_bflags; diff --git a/dset.h b/dset.h index 0293c03..ca91211 100644 --- a/dset.h +++ b/dset.h @@ -39,6 +39,42 @@ extern unsigned int nr_branches; /*! \brief + * Structure for storing branch attributes + */ +struct branch +{ + char uri[MAX_URI_SIZE]; + unsigned int len; + + /* Real destination of the request */ + char dst_uri[MAX_URI_SIZE]; + unsigned int dst_uri_len; + + /* Path set */ + char path[MAX_PATH_SIZE]; + unsigned int path_len; + + int q; /* Preference of the contact among + * contact within the array */ + struct socket_info* force_send_socket; + + /* Branch flags */ + flag_t flags; +}; + +typedef struct branch branch_t; + +/*! \brief + * Return pointer to branch[idx] structure + */ +branch_t *get_sip_branch(int idx); + +/*! \brief + * Drop branch[idx] + */ +int drop_sip_branch(int idx); + +/*! \brief * Add a new branch to current transaction */ int append_branch(struct sip_msg* msg, str* uri, str* dst_uri, str* path,