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solver: convert some package state flags to bitfields

cute-signatures
Timo Teräs 2012-02-16 21:46:09 +02:00
parent 706664c178
commit 4bc8add78d
1 changed files with 13 additions and 11 deletions
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24
src/solver.c
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@ -26,8 +26,6 @@
#define APK_PKGSTF_NOINSTALL 0
#define APK_PKGSTF_INSTALL 1
#define APK_PKGSTF_ALT_BRANCH 2
#define APK_PKGSTF_INSTALLIF 4
#define APK_PKGSTF_DECIDED 8
struct apk_score {
unsigned short unsatisfiable;
@ -42,7 +40,9 @@ struct apk_package_state {
unsigned availability_checked : 1;
unsigned unavailable : 1;
unsigned install_applied : 1;
unsigned flags : 4;
unsigned handle_install_if : 1;
unsigned locked : 1;
unsigned flags : 2;
};
struct apk_name_state {
@ -411,7 +411,7 @@ static int get_preference(struct apk_solver_state *ss,
if (installable_only &&
(ss->topology_position < pkg0->topology_hard ||
(ps0->flags & APK_PKGSTF_DECIDED)))
ps0->locked))
continue;
r = compare_package_preference(name_flags,
@ -498,7 +498,7 @@ static int update_name_state(struct apk_solver_state *ss, struct apk_name *name)
if (ps0 == NULL ||
ss->topology_position < pkg0->topology_hard ||
(ps0->flags & APK_PKGSTF_DECIDED) ||
ps0->locked ||
check_if_package_unavailable(ss, pkg0))
continue;
@ -673,7 +673,7 @@ static void undo_decision(struct apk_solver_state *ss,
dbg_printf("-->undo_decision: " PKG_VER_FMT " %s\n", PKG_VER_PRINTF(pkg),
(ps->flags & APK_PKGSTF_INSTALL) ? "INSTALL" : "NO_INSTALL");
if (ps->flags & APK_PKGSTF_INSTALLIF)
if (ps->handle_install_if)
ss->topology_position = ps->topology_soft;
else
ss->topology_position = pkg->topology_hard;
@ -705,15 +705,16 @@ static solver_result_t push_decision(struct apk_solver_state *ss, struct apk_pac
struct apk_package_state *ps = pkg_to_ps(pkg);
ps->backtrack = ss->latest_decision;
ps->flags = flags | APK_PKGSTF_DECIDED;
ps->locked = 1;
ps->flags = flags;
ps->saved_score = ss->score;
if (ps->topology_soft < ss->topology_position) {
if (flags & APK_PKGSTF_INSTALL)
ps->flags |= APK_PKGSTF_INSTALLIF;
ps->handle_install_if = 1;
ss->topology_position = ps->topology_soft;
} else {
ps->flags &= ~APK_PKGSTF_INSTALLIF;
ps->handle_install_if = 0;
ss->topology_position = pkg->topology_hard;
}
ss->latest_decision = pkg;
@ -723,7 +724,7 @@ static solver_result_t push_decision(struct apk_solver_state *ss, struct apk_pac
ss->score.unsatisfiable,
ss->score.preference);
if (ps->flags & APK_PKGSTF_INSTALLIF)
if (ps->handle_install_if)
dbg_printf("triggers due to " PKG_VER_FMT "\n",
PKG_VER_PRINTF(pkg));
@ -742,7 +743,8 @@ static int next_branch(struct apk_solver_state *ss)
if (ps->flags & APK_PKGSTF_ALT_BRANCH) {
dbg_printf("-->next_branch: undo decision at topology_position %d\n",
ss->topology_position);
ps->flags &= ~(APK_PKGSTF_ALT_BRANCH | APK_PKGSTF_DECIDED);
ps->flags &= ~APK_PKGSTF_ALT_BRANCH;
ps->locked = 0;
undo_decision(ss, pkg, ps);
ss->latest_decision = ps->backtrack;