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authorDan McGee <dan@archlinux.org>2012-01-11 15:39:52 -0600
committerDan McGee <dan@archlinux.org>2012-01-18 22:10:06 -0600
commitb3612e9cc198f198b3806efa461bf6fc04dd4502 (patch)
tree85d6018836a02c4ed4cb1211d3ec73d34a2259c9 /lib/libalpm/handle.c
parent6e8ca48cbb22c328deab56b1740be04ea7ddba6e (diff)
Allow UseDelta option to specify a delta ratio
Rework the frontend and backend to allow passing a ratio value in for UseDelta rather than having a hardcoded #define-d 0.7 value always used. This is useful for those with fast connections, who would likely benefit from tuning this ratio to lower values; it is also useful for general testing purposes. The libalpm API changes for this, but we do support the old config file format with a no-value 'UseDelta' option; in this case we simply use the old default of 0.7. We clamp the ratio values to a sane range between 0.0 and 2.0, allowing ratios above 1.0 for testing purposes. Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm/handle.c')
-rw-r--r--lib/libalpm/handle.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/libalpm/handle.c b/lib/libalpm/handle.c
index 8e2e3c73..2187dca9 100644
--- a/lib/libalpm/handle.c
+++ b/lib/libalpm/handle.c
@@ -43,6 +43,7 @@ alpm_handle_t *_alpm_handle_new(void)
alpm_handle_t *handle;
CALLOC(handle, 1, sizeof(alpm_handle_t), return NULL);
+ handle->deltaratio = 0.0;
return handle;
}
@@ -252,10 +253,10 @@ const char SYMEXPORT *alpm_option_get_arch(alpm_handle_t *handle)
return handle->arch;
}
-int SYMEXPORT alpm_option_get_usedelta(alpm_handle_t *handle)
+double SYMEXPORT alpm_option_get_deltaratio(alpm_handle_t *handle)
{
CHECK_HANDLE(handle, return -1);
- return handle->usedelta;
+ return handle->deltaratio;
}
int SYMEXPORT alpm_option_get_checkspace(alpm_handle_t *handle)
@@ -597,10 +598,13 @@ int SYMEXPORT alpm_option_set_arch(alpm_handle_t *handle, const char *arch)
return 0;
}
-int SYMEXPORT alpm_option_set_usedelta(alpm_handle_t *handle, int usedelta)
+int SYMEXPORT alpm_option_set_deltaratio(alpm_handle_t *handle, double ratio)
{
CHECK_HANDLE(handle, return -1);
- handle->usedelta = usedelta;
+ if(ratio < 0.0 || ratio > 2.0) {
+ RET_ERR(handle, ALPM_ERR_WRONG_ARGS, -1);
+ }
+ handle->deltaratio = ratio;
return 0;
}