Retries: rework DB keys, and fix exinext IPv6. Bug 3086

[exim.git] / src / src / structs.h

diff --git a/src/src/structs.h b/src/src/structs.h
index b38aa6a9d4427b70482e4948584e5929d573fcd8..8aab540559f24ea0ec1b5c064ce41eaa89463a78 100644 (file)
--- a/src/src/structs.h
+++ b/src/src/structs.h
@@ -2,9 +2,10 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) The Exim Maintainers 2020 - 2023 */
 /* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 /* Definitions of various structures. In addition, those that are visible for
@@ -182,7 +183,7 @@ typedef struct transport_instance {
   uschar *expand_multi_domain;    /* )                                  */
   BOOL    multi_domain;           /* )                                  */
   BOOL    overrides_hosts;        /* ) Used only for remote transports  */
-  int     max_addresses;          /* )                                  */
+  uschar *max_addresses;          /* )                                  */
   int     connection_max_messages;/* )                                  */
                                   /**************************************/
   BOOL    deliver_as_creator;     /* Used only by pipe at present */
@@ -468,8 +469,8 @@ typedef struct ip_address_item {
 /* Structure for chaining together arbitrary strings. */
 
 typedef struct string_item {
-  struct string_item *next;
-  uschar *text;
+  struct string_item * next;
+  uschar *             text;
 } string_item;
 
 /* Information about a soft delivery failure, for use when calculating
@@ -479,7 +480,7 @@ can be tried. */
 
 typedef struct retry_item {
   struct retry_item *next;        /* for chaining */
-  uschar *key;                    /* string identifying host/address/message */
+  const uschar *key;              /* string identifying host/address/message */
   int     basic_errno;            /* error code for this destination */
   int     more_errno;             /* additional error information */
   uschar *message;                /* local error message */
@@ -525,7 +526,7 @@ typedef struct address_item_propagated {
   uschar *address_data;           /* arbitrary data to keep with the address */
   uschar *domain_data;            /* from "domains" lookup */
   uschar *localpart_data;         /* from "local_parts" lookup */
-  uschar *errors_address;         /* where to send errors (NULL => sender) */
+  const uschar *errors_address;         /* where to send errors (NULL => sender) */
   header_line *extra_headers;     /* additional headers */
   uschar *remove_headers;         /* list of those to remove */
   void   *variables;             /* router-vasriables */
@@ -560,15 +561,15 @@ typedef struct address_item {
   reply_item *reply;              /* data for autoreply */
   retry_item *retries;            /* chain of retry information */
 
-  uschar *address;                /* address being delivered or routed */
+  const uschar *address;                /* address being delivered or routed */
   uschar *unique;                 /* used for disambiguating */
-  uschar *cc_local_part;          /* caseful local part */
-  uschar *lc_local_part;          /* lowercased local part */
-  uschar *local_part;             /* points to cc or lc version */
-  uschar *prefix;                 /* stripped prefix of local part */
-  uschar *prefix_v;              /*  variable part of above */
-  uschar *suffix;                 /* stripped suffix of local part */
-  uschar *suffix_v;              /*  variable part of above */
+  const uschar *cc_local_part;    /* caseful local part */
+  const uschar *lc_local_part;    /* lowercased local part */
+  const uschar *local_part;       /* points to cc or lc version */
+  const uschar *prefix;           /* stripped prefix of local part */
+  const uschar *prefix_v;        /*  variable part of above */
+  const uschar *suffix;           /* stripped suffix of local part */
+  const uschar *suffix_v;        /*  variable part of above */
   const uschar *domain;           /* working domain (lower cased) */
 
   uschar *address_retry_key;      /* retry key including full address */
@@ -579,12 +580,15 @@ typedef struct address_item {
   uschar *message;                /* error message */
   uschar *user_message;           /* error message that can be sent over SMTP
                                      or quoted in bounce message */
-  uschar *onetime_parent;         /* saved original parent for onetime */
+  const uschar *onetime_parent;         /* saved original parent for onetime */
   uschar **pipe_expandn;          /* numeric expansions for pipe from filter */
   uschar *return_filename;        /* name of return file */
   uschar *self_hostname;          /* after self=pass */
   uschar *shadow_message;         /* info about shadow transporting */
 
+  uid_t   uid;                    /* uid for transporting */
+  gid_t   gid;                    /* gid for transporting */
+
 #ifndef DISABLE_TLS
   const uschar *tlsver;           /* version used for transport */
   uschar *cipher;                 /* Cipher used for transport */
@@ -607,9 +611,9 @@ typedef struct address_item {
   int     dsn_flags;              /* DSN flags */
   int     dsn_aware;              /* DSN aware flag */
 
-  uid_t   uid;                    /* uid for transporting */
-  gid_t   gid;                    /* gid for transporting */
-
+#ifndef DISABLE_DKIM
+  const uschar * dkim_used;      /* DKIM info, or NULL */
+#endif
                                  /* flags */
   struct {
     BOOL af_allow_file:1;              /* allow file in generated address */
@@ -895,7 +899,7 @@ typedef struct check_host_block {
   const uschar *host_name;
   const uschar *host_address;
   const uschar *host_ipv4;
-  BOOL   negative;
+  mcs_flags    flags;
 } check_host_block;
 
 /* Structure for remembering lookup data when caching the result of
@@ -957,4 +961,22 @@ struct ob_dkim {
 #endif
 };
 
+
+/* per-queue-runner info */
+typedef struct qrunner {
+  struct qrunner * next;       /* list sorted by next tick */
+
+  uschar *     name;           /* NULL for the default queue */
+  unsigned     interval;       /* tick rate, seconds. Zero for a one-time run */
+  time_t       next_tick;      /* next run should, or should have, start(ed) */
+  unsigned     run_max;        /* concurrent queue runner limit */
+  unsigned     run_count;      /* current runners */
+
+  BOOL queue_run_force :1;
+  BOOL deliver_force_thaw :1;
+  BOOL queue_run_first_delivery :1;
+  BOOL queue_run_local :1;
+  BOOL queue_2stage :1;
+} qrunner;
+
 /* End of structs.h */