libopkg/pkg_depends.h

   1 /* pkg_depends.h - the opkg 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 #include "includes.h"
  24
  25 enum depend_type {
  26     PREDEPEND,
  27     DEPEND,
  28     CONFLICTS,
  29     GREEDY_DEPEND,
  30     RECOMMEND,
  31     SUGGEST
  32 };
  33 typedef enum depend_type depend_type_t;
  34
  35 enum version_constraint {
  36     NONE,
  37     EARLIER,
  38     EARLIER_EQUAL,
  39     EQUAL,
  40     LATER_EQUAL,
  41     LATER
  42 };
  43 typedef enum version_constraint version_constraint_t;
  44
  45 struct depend{
  46     version_constraint_t constraint;
  47     char * version;
  48     abstract_pkg_t * pkg;
  49 };
  50 typedef struct depend depend_t;
  51
  52 struct compound_depend{
  53     depend_type_t type;
  54     int possibility_count;
  55     struct depend ** possibilities;
  56 };
  57 typedef struct compound_depend compound_depend_t;
  58
  59 #include "hash_table.h"
  60
  61 void buildProvides(hash_table_t * hash, abstract_pkg_t * ab_pkg, pkg_t * pkg);
  62 void buildConflicts(hash_table_t * hash, abstract_pkg_t * ab_pkg, pkg_t * pkg);
  63 void buildReplaces(hash_table_t * hash, abstract_pkg_t * ab_pkg, pkg_t * pkg);
  64 void buildDepends(hash_table_t * hash, pkg_t * pkg);
  65
  66 /**
  67  * pkg_has_common_provides returns 1 if pkg and replacee both provide
  68  * the same abstract package and 0 otherwise.
  69  */
  70 int pkg_has_common_provides(pkg_t *pkg, pkg_t *replacee);
  71
  72 /**
  73  * pkg_provides returns 1 if pkg->provides contains providee and 0
  74  * otherwise.
  75  */
  76 int pkg_provides_abstract(pkg_t *pkg, abstract_pkg_t *providee);
  77
  78 /**
  79  * pkg_replaces returns 1 if pkg->replaces contains one of replacee's provides and 0
  80  * otherwise.
  81  */
  82 int pkg_replaces(pkg_t *pkg, pkg_t *replacee);
  83
  84 /**
  85  * pkg_conflicts_abstract returns 1 if pkg->conflicts contains conflictee provides and 0
  86  * otherwise.
  87  */
  88 int pkg_conflicts_abstract(pkg_t *pkg, abstract_pkg_t *conflicts);
  89
  90 /**
  91  * pkg_conflicts returns 1 if pkg->conflicts contains one of conflictee's provides and 0
  92  * otherwise.
  93  */
  94 int pkg_conflicts(pkg_t *pkg, pkg_t *conflicts);
  95
  96 char *pkg_depend_str(pkg_t *pkg, int index);
  97 void buildDependedUponBy(pkg_t * pkg, abstract_pkg_t * ab_pkg);
  98 void freeDepends(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