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-rw-r--r--lib/libalpm/delta.c110
1 files changed, 47 insertions, 63 deletions
diff --git a/lib/libalpm/delta.c b/lib/libalpm/delta.c
index 10c982f2..fc7a0f75 100644
--- a/lib/libalpm/delta.c
+++ b/lib/libalpm/delta.c
@@ -34,43 +34,6 @@
#include "log.h"
#include "graph.h"
-/** \addtogroup alpm_deltas Delta Functions
- * @brief Functions to manipulate libalpm deltas
- * @{
- */
-
-const char SYMEXPORT *alpm_delta_get_from(pmdelta_t *delta)
-{
- ASSERT(delta != NULL, return(NULL));
- return(delta->from);
-}
-
-const char SYMEXPORT *alpm_delta_get_to(pmdelta_t *delta)
-{
- ASSERT(delta != NULL, return(NULL));
- return(delta->to);
-}
-
-const char SYMEXPORT *alpm_delta_get_filename(pmdelta_t *delta)
-{
- ASSERT(delta != NULL, return(NULL));
- return(delta->delta);
-}
-
-const char SYMEXPORT *alpm_delta_get_md5sum(pmdelta_t *delta)
-{
- ASSERT(delta != NULL, return(NULL));
- return(delta->delta_md5);
-}
-
-off_t SYMEXPORT alpm_delta_get_size(pmdelta_t *delta)
-{
- ASSERT(delta != NULL, return(-1));
- return(delta->delta_size);
-}
-
-/** @} */
-
static alpm_list_t *graph_init(alpm_list_t *deltas, int reverse)
{
alpm_list_t *i, *j;
@@ -78,6 +41,10 @@ static alpm_list_t *graph_init(alpm_list_t *deltas, int reverse)
/* create the vertices */
for(i = deltas; i; i = i->next) {
pmgraph_t *v = _alpm_graph_new();
+ if(!v) {
+ alpm_list_free(vertices);
+ return NULL;
+ }
pmdelta_t *vdelta = i->data;
vdelta->download_size = vdelta->delta_size;
v->weight = LONG_MAX;
@@ -108,10 +75,10 @@ static alpm_list_t *graph_init(alpm_list_t *deltas, int reverse)
}
v_i->childptr = v_i->children;
}
- return(vertices);
+ return vertices;
}
-static void graph_init_size(alpm_list_t *vertices)
+static void graph_init_size(pmhandle_t *handle, alpm_list_t *vertices)
{
alpm_list_t *i;
@@ -121,7 +88,7 @@ static void graph_init_size(alpm_list_t *vertices)
pmdelta_t *vdelta = v->data;
/* determine whether the delta file already exists */
- fpath = _alpm_filecache_find(vdelta->delta);
+ fpath = _alpm_filecache_find(handle, vdelta->delta);
md5sum = alpm_compute_md5sum(fpath);
if(fpath && md5sum && strcmp(md5sum, vdelta->delta_md5) == 0) {
vdelta->download_size = 0;
@@ -130,7 +97,7 @@ static void graph_init_size(alpm_list_t *vertices)
FREE(md5sum);
/* determine whether a base 'from' file exists */
- fpath = _alpm_filecache_find(vdelta->from);
+ fpath = _alpm_filecache_find(handle, vdelta->from);
if(fpath) {
v->weight = vdelta->download_size;
}
@@ -205,12 +172,13 @@ static off_t shortest_path(alpm_list_t *vertices, const char *to, alpm_list_t **
*path = alpm_list_reverse(rpath);
alpm_list_free(rpath);
- return(bestsize);
+ return bestsize;
}
/** Calculates the shortest path from one version to another.
* The shortest path is defined as the path with the smallest combined
* size, not the length of the path.
+ * @param handle the context handle
* @param deltas the list of pmdelta_t * objects that a file has
* @param to the file to start the search at
* @param path the pointer to a list location where pmdelta_t * objects that
@@ -218,34 +186,32 @@ static off_t shortest_path(alpm_list_t *vertices, const char *to, alpm_list_t **
* possible with the files available.
* @return the size of the path stored, or LONG_MAX if path is unfindable
*/
-off_t _alpm_shortest_delta_path(alpm_list_t *deltas,
+off_t _alpm_shortest_delta_path(pmhandle_t *handle, alpm_list_t *deltas,
const char *to, alpm_list_t **path)
{
alpm_list_t *bestpath = NULL;
alpm_list_t *vertices;
off_t bestsize = LONG_MAX;
- ALPM_LOG_FUNC;
-
if(deltas == NULL) {
*path = NULL;
- return(bestsize);
+ return bestsize;
}
- _alpm_log(PM_LOG_DEBUG, "started delta shortest-path search for '%s'\n", to);
+ _alpm_log(handle, PM_LOG_DEBUG, "started delta shortest-path search for '%s'\n", to);
vertices = graph_init(deltas, 0);
- graph_init_size(vertices);
+ graph_init_size(handle, vertices);
dijkstra(vertices);
bestsize = shortest_path(vertices, to, &bestpath);
- _alpm_log(PM_LOG_DEBUG, "delta shortest-path search complete : '%jd'\n", (intmax_t)bestsize);
+ _alpm_log(handle, PM_LOG_DEBUG, "delta shortest-path search complete : '%jd'\n", (intmax_t)bestsize);
alpm_list_free_inner(vertices, _alpm_graph_free);
alpm_list_free(vertices);
*path = bestpath;
- return(bestsize);
+ return bestsize;
}
static alpm_list_t *find_unused(alpm_list_t *deltas, const char *to, off_t quota)
@@ -273,9 +239,14 @@ static alpm_list_t *find_unused(alpm_list_t *deltas, const char *to, off_t quota
}
alpm_list_free_inner(vertices, _alpm_graph_free);
alpm_list_free(vertices);
- return(unused);
+ return unused;
}
+/** \addtogroup alpm_deltas Delta Functions
+ * @brief Functions to manipulate libalpm deltas
+ * @{
+ */
+
alpm_list_t SYMEXPORT *alpm_pkg_unused_deltas(pmpkg_t *pkg)
{
off_t pkgsize = alpm_pkg_get_size(pkg);
@@ -283,9 +254,10 @@ alpm_list_t SYMEXPORT *alpm_pkg_unused_deltas(pmpkg_t *pkg)
alpm_pkg_get_deltas(pkg),
alpm_pkg_get_filename(pkg),
pkgsize * MAX_DELTA_RATIO);
- return(unused);
+ return unused;
}
+/** @} */
/** Parses the string representation of a pmdelta_t object.
* This function assumes that the string is in the correct format.
@@ -308,21 +280,21 @@ pmdelta_t *_alpm_delta_parse(char *line)
if(regexec(&reg, line, 0, 0, 0) != 0) {
/* delta line is invalid, return NULL */
regfree(&reg);
- return(NULL);
+ return NULL;
}
regfree(&reg);
- CALLOC(delta, 1, sizeof(pmdelta_t), RET_ERR(PM_ERR_MEMORY, NULL));
+ CALLOC(delta, 1, sizeof(pmdelta_t), return NULL);
tmp2 = tmp;
tmp = strchr(tmp, ' ');
*(tmp++) = '\0';
- STRDUP(delta->delta, tmp2, RET_ERR(PM_ERR_MEMORY, NULL));
+ STRDUP(delta->delta, tmp2, return NULL);
tmp2 = tmp;
tmp = strchr(tmp, ' ');
*(tmp++) = '\0';
- STRDUP(delta->delta_md5, tmp2, RET_ERR(PM_ERR_MEMORY, NULL));
+ STRDUP(delta->delta_md5, tmp2, return NULL);
tmp2 = tmp;
tmp = strchr(tmp, ' ');
@@ -332,23 +304,35 @@ pmdelta_t *_alpm_delta_parse(char *line)
tmp2 = tmp;
tmp = strchr(tmp, ' ');
*(tmp++) = '\0';
- STRDUP(delta->from, tmp2, RET_ERR(PM_ERR_MEMORY, NULL));
+ STRDUP(delta->from, tmp2, return NULL);
tmp2 = tmp;
- STRDUP(delta->to, tmp2, RET_ERR(PM_ERR_MEMORY, NULL));
-
- _alpm_log(PM_LOG_DEBUG, "delta : %s %s '%jd'\n", delta->from, delta->to, (intmax_t)delta->delta_size);
+ STRDUP(delta->to, tmp2, return NULL);
- return(delta);
+ return delta;
}
void _alpm_delta_free(pmdelta_t *delta)
{
- FREE(delta->from);
- FREE(delta->to);
FREE(delta->delta);
FREE(delta->delta_md5);
+ FREE(delta->from);
+ FREE(delta->to);
FREE(delta);
}
+pmdelta_t *_alpm_delta_dup(const pmdelta_t *delta)
+{
+ pmdelta_t *newdelta;
+ CALLOC(newdelta, 1, sizeof(pmdelta_t), return NULL);
+ STRDUP(newdelta->delta, delta->delta, return NULL);
+ STRDUP(newdelta->delta_md5, delta->delta_md5, return NULL);
+ STRDUP(newdelta->from, delta->from, return NULL);
+ STRDUP(newdelta->to, delta->to, return NULL);
+ newdelta->delta_size = delta->delta_size;
+ newdelta->download_size = delta->download_size;
+
+ return newdelta;
+}
+
/* vim: set ts=2 sw=2 noet: */

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