mirror of https://github.com/djcb/mu.git
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/*
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** Copyright (C) 2011 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
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**
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** This program is free software; you can redistribute it and/or modify it
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** under the terms of the GNU General Public License as published by the
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** Free Software Foundation; either version 3, or (at your option) any
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** later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software Foundation,
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** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**
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*/
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#include <mu-query.h>
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#include <mu-store.h>
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#include <mu-runtime.h>
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#include "mu-guile-msg.h"
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#include "mu-guile-store.h"
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#include "mu-guile-common.h"
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static MuQuery*
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get_query (void)
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{
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MuQuery *query;
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MuStore *store;
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GError *err;
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err = NULL;
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store = mu_store_new_read_only (mu_runtime_path(MU_RUNTIME_PATH_XAPIANDB),
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&err);
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query = store ? mu_query_new (store, &err) : NULL;
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if (store)
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mu_store_unref (store);
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if (!query) {
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mu_guile_g_error ("<internal error>", err);
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g_clear_error (&err);
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}
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return query;
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}
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static MuMsgIter*
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get_query_iter (MuQuery *query, const char* expr)
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{
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MuMsgIter *iter;
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GError *err;
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err = NULL;
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iter = mu_query_run (query, expr,
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FALSE, MU_MSG_FIELD_ID_NONE, TRUE, &err);
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if (!iter) {
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mu_guile_g_error ("<internal error>", err);
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g_clear_error (&err);
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}
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return iter;
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}
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static void
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call_func (SCM FUNC, MuMsgIter *iter, const char* func_name)
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{
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SCM msgsmob;
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MuMsg *msg;
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msg = mu_msg_iter_get_msg_floating (iter); /* don't unref */
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msgsmob = mu_guile_msg_to_scm (mu_msg_ref(msg));
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scm_call_1 (FUNC, msgsmob);
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}
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SCM_DEFINE (store_foreach, "mu:store:for-each", 1, 1, 0,
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(SCM FUNC, SCM EXPR),
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"Call FUNC for each message in the store, or, if EXPR is specified, "
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"for each message matching EXPR.\n")
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#define FUNC_NAME s_store_foreach
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{
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MuQuery *query;
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MuMsgIter *iter;
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int count;
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const char* expr;
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SCM_ASSERT (scm_procedure_p (FUNC), FUNC, SCM_ARG1, FUNC_NAME);
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SCM_ASSERT (scm_is_string (EXPR) || EXPR == SCM_UNSPECIFIED,
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EXPR, SCM_ARG2, FUNC_NAME);
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query = get_query ();
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if (!query)
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return SCM_UNSPECIFIED;
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expr = SCM_UNBNDP(EXPR) ? NULL : scm_to_utf8_string(EXPR);
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iter = get_query_iter (query, expr);
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if (!iter)
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return SCM_UNSPECIFIED;
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for (count = 0; !mu_msg_iter_is_done(iter); mu_msg_iter_next (iter)) {
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call_func (FUNC, iter, FUNC_NAME);
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++count;
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}
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mu_query_destroy (query);
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return scm_from_int (count);
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}
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#undef FUNC_NAME
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void*
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mu_guile_store_init (void *data)
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{
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#include "mu-guile-store.x"
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return NULL;
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}
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