libopkg/pkg_depends.h

   1 /* pkg_depends.h - the itsy package management system
   2
   3    Steven M. Ayer
   4
   5    Copyright (C) 2002 Compaq Computer Corporation
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16 */
  17
  18 #ifndef PKG_DEPENDS_H
  19 #define PKG_DEPENDS_H
  20
  21 #include "pkg.h"
  22 #include "pkg_hash.h"
  23
  24 enum depend_type {
  25     PREDEPEND,
  26     DEPEND,
  27     CONFLICTS,
  28     GREEDY_DEPEND,
  29     RECOMMEND,
  30     SUGGEST
  31 };
  32 typedef enum depend_type depend_type_t;
  33
  34 enum version_constraint {
  35     NONE,
  36     EARLIER,
  37     EARLIER_EQUAL,
  38     EQUAL,
  39     LATER_EQUAL,
  40     LATER
  41 };
  42 typedef enum version_constraint version_constraint_t;
  43
  44 struct depend{
  45     version_constraint_t constraint;
  46     char * version;
  47     abstract_pkg_t * pkg;
  48 };
  49 typedef struct depend depend_t;
  50
  51 struct compound_depend{
  52     depend_type_t type;
  53     int possibility_count;
  54     struct depend ** possibilities;
  55 };
  56 typedef struct compound_depend compound_depend_t;
  57
  58 #include "hash_table.h"
  59
  60 int buildProvides(hash_table_t * hash, abstract_pkg_t * ab_pkg, pkg_t * pkg);
  61 int buildConflicts(hash_table_t * hash, abstract_pkg_t * ab_pkg, pkg_t * pkg);
  62 int buildReplaces(hash_table_t * hash, abstract_pkg_t * ab_pkg, pkg_t * pkg);
  63 int buildDepends(hash_table_t * hash, pkg_t * pkg);
  64
  65 /**
  66  * pkg_has_common_provides returns 1 if pkg and replacee both provide
  67  * the same abstract package and 0 otherwise.
  68  */
  69 int pkg_has_common_provides(pkg_t *pkg, pkg_t *replacee);
  70
  71 /**
  72  * pkg_provides returns 1 if pkg->provides contains providee and 0
  73  * otherwise.
  74  */
  75 int pkg_provides_abstract(pkg_t *pkg, abstract_pkg_t *providee);
  76
  77 /**
  78  * pkg_replaces returns 1 if pkg->replaces contains one of replacee's provides and 0
  79  * otherwise.
  80  */
  81 int pkg_replaces(pkg_t *pkg, pkg_t *replacee);
  82
  83 /**
  84  * pkg_conflicts_abstract returns 1 if pkg->conflicts contains conflictee provides and 0
  85  * otherwise.
  86  */
  87 int pkg_conflicts_abstract(pkg_t *pkg, abstract_pkg_t *conflicts);
  88
  89 /**
  90  * pkg_conflicts returns 1 if pkg->conflicts contains one of conflictee's provides and 0
  91  * otherwise.
  92  */
  93 int pkg_conflicts(pkg_t *pkg, pkg_t *conflicts);
  94
  95 char *pkg_depend_str(pkg_t *pkg, int index);
  96 void buildDependedUponBy(pkg_t * pkg, abstract_pkg_t * ab_pkg);
  97 void freeDepends(pkg_t *pkg);
  98 void printDepends(pkg_t * pkg);
  99 int version_constraints_satisfied(depend_t * depends, pkg_t * pkg);
 100 int pkg_hash_fetch_unsatisfied_dependencies(opkg_conf_t *conf, pkg_t * pkg, pkg_vec_t *depends, char *** unresolved);
 101 pkg_vec_t * pkg_hash_fetch_conflicts(hash_table_t * hash, pkg_t * pkg);
 102 int pkg_dependence_satisfiable(opkg_conf_t *conf, depend_t *depend);
 103 int pkg_dependence_satisfied(opkg_conf_t *conf, depend_t *depend);
 104
 105 #endif