Reimplement TotalDownload functionality

Add a new totaldlcb callback function to libalpm and make pacman utilize it
when the TotalDownload option is enabled. This callback function is pretty
simple- it is meant to be called once at the beginning of a "list download"
action, and once at the end (with value 0 to indicate the list has been
finished). The frontend is responsible for keeping track of adding
individual file download amounts to the total xfered amount in order to
display some sort of overall progress.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/libalpm/handle.c b/lib/libalpm/handle.c
index c01dd551..af1cc78b 100644
--- a/lib/libalpm/handle.c
+++ b/lib/libalpm/handle.c
@@ -115,6 +115,15 @@ alpm_cb_download SYMEXPORT alpm_option_get_dlcb()
 	return handle->dlcb;
 }
 
+alpm_cb_totaldl SYMEXPORT alpm_option_get_totaldlcb()
+{
+	if (handle == NULL) {
+		pm_errno = PM_ERR_HANDLE_NULL;
+		return NULL;
+	}
+	return handle->totaldlcb;
+}
+
 const char SYMEXPORT *alpm_option_get_root()
 {
 	if (handle == NULL) {
@@ -268,6 +277,15 @@ void SYMEXPORT alpm_option_set_dlcb(alpm_cb_download cb)
 	handle->dlcb = cb;
 }
 
+void SYMEXPORT alpm_option_set_totaldlcb(alpm_cb_totaldl cb)
+{
+	if (handle == NULL) {
+		pm_errno = PM_ERR_HANDLE_NULL;
+		return;
+	}
+	handle->totaldlcb = cb;
+}
+
 int SYMEXPORT alpm_option_set_root(const char *root)
 {
 	struct stat st;