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
  24 enum depend_type {
  25         UNSPEC,
  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 void buildProvides(abstract_pkg_t * ab_pkg, pkg_t * pkg);
  60 void buildConflicts(pkg_t * pkg);
  61 void buildReplaces(abstract_pkg_t * ab_pkg, pkg_t * pkg);
  62 void buildDepends(pkg_t * pkg);
  63
  64 void parse_deplist(pkg_t *pkg, enum depend_type type, char *list);
  65
  66 abstract_pkg_t **init_providelist(pkg_t *pkg, int *count);
  67 void parse_providelist(pkg_t *pkg, char *list);
  68
  69 /**
  70  * pkg_replaces returns 1 if pkg->replaces contains one of replacee's provides and 0
  71  * otherwise.
  72  */
  73 int pkg_replaces(pkg_t * pkg, pkg_t * replacee);
  74
  75 /**
  76  * pkg_conflicts_abstract returns 1 if pkg->conflicts contains conflictee provides and 0
  77  * otherwise.
  78  */
  79 int pkg_conflicts_abstract(pkg_t * pkg, abstract_pkg_t * conflicts);
  80
  81 /**
  82  * pkg_conflicts returns 1 if pkg->conflicts contains one of conflictee's provides and 0
  83  * otherwise.
  84  */
  85 int pkg_conflicts(pkg_t * pkg, pkg_t * conflicts);
  86
  87 char *pkg_depend_str(pkg_t * pkg, int index);
  88 void buildDependedUponBy(pkg_t * pkg, abstract_pkg_t * ab_pkg);
  89 int version_constraints_satisfied(depend_t * depends, pkg_t * pkg);
  90 int pkg_hash_fetch_unsatisfied_dependencies(pkg_t * pkg, pkg_vec_t * depends,
  91                                             char ***unresolved);
  92 pkg_vec_t *pkg_hash_fetch_conflicts(pkg_t * pkg);
  93 int pkg_dependence_satisfiable(depend_t * depend);
  94 int pkg_dependence_satisfied(depend_t * depend);
  95 const char *constraint_to_str(enum version_constraint c);
  96
  97 compound_depend_t *pkg_get_depends(pkg_t *pkg, enum depend_type type);
  98
  99 #endif