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charset="utf-8" Generalize hmp_split_at_comma() to take any delimiter string, rename as strList_from_string(), and move it to util/strList.c. No functional change. Signed-off-by: Steve Sistare --- include/monitor/hmp.h | 1 - include/qemu/strList.h | 24 ++++++++++++++++++++++++ monitor/hmp-cmds.c | 19 ------------------- net/net-hmp-cmds.c | 3 ++- stats/stats-hmp-cmds.c | 3 ++- util/meson.build | 1 + util/strList.c | 24 ++++++++++++++++++++++++ 7 files changed, 53 insertions(+), 22 deletions(-) create mode 100644 include/qemu/strList.h create mode 100644 util/strList.c diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h index 13f9a2d..2df661e 100644 --- a/include/monitor/hmp.h +++ b/include/monitor/hmp.h @@ -19,7 +19,6 @@ =20 bool hmp_handle_error(Monitor *mon, Error *err); void hmp_help_cmd(Monitor *mon, const char *name); -strList *hmp_split_at_comma(const char *str); =20 void hmp_info_name(Monitor *mon, const QDict *qdict); void hmp_info_version(Monitor *mon, const QDict *qdict); diff --git a/include/qemu/strList.h b/include/qemu/strList.h new file mode 100644 index 0000000..010237f --- /dev/null +++ b/include/qemu/strList.h @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2022 - 2024 Oracle and/or its affiliates. + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#ifndef QEMU_STR_LIST_H +#define QEMU_STR_LIST_H + +#include "qapi/qapi-builtin-types.h" + +/* + * Break @in into a strList using the delimiter string @delim. + * The delimiter is not included in the result. + * Return NULL if @in is NULL or an empty string. + * A leading, trailing, or consecutive delimiter produces an + * empty string at that position in the output. + * All strings are g_strdup'd, and the result can be freed + * using qapi_free_strList. + */ +strList *strList_from_string(const char *in, const char *delim); + +#endif diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 871898a..66b68a0 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -38,25 +38,6 @@ bool hmp_handle_error(Monitor *mon, Error *err) return false; } =20 -/* - * Split @str at comma. - * A null @str defaults to "". - */ -strList *hmp_split_at_comma(const char *str) -{ - char **split =3D g_strsplit(str ?: "", ",", -1); - strList *res =3D NULL; - strList **tail =3D &res; - int i; - - for (i =3D 0; split[i]; i++) { - QAPI_LIST_APPEND(tail, split[i]); - } - - g_free(split); - return res; -} - void hmp_info_name(Monitor *mon, const QDict *qdict) { NameInfo *info; diff --git a/net/net-hmp-cmds.c b/net/net-hmp-cmds.c index 41d326b..e893801 100644 --- a/net/net-hmp-cmds.c +++ b/net/net-hmp-cmds.c @@ -26,6 +26,7 @@ #include "qemu/config-file.h" #include "qemu/help_option.h" #include "qemu/option.h" +#include "qemu/strList.h" =20 void hmp_info_network(Monitor *mon, const QDict *qdict) { @@ -72,7 +73,7 @@ void hmp_announce_self(Monitor *mon, const QDict *qdict) migrate_announce_params()); =20 qapi_free_strList(params->interfaces); - params->interfaces =3D hmp_split_at_comma(interfaces_str); + params->interfaces =3D strList_from_string(interfaces_str, ","); params->has_interfaces =3D params->interfaces !=3D NULL; params->id =3D g_strdup(id); qmp_announce_self(params, NULL); diff --git a/stats/stats-hmp-cmds.c b/stats/stats-hmp-cmds.c index 1f91bf8..428c0e6 100644 --- a/stats/stats-hmp-cmds.c +++ b/stats/stats-hmp-cmds.c @@ -10,6 +10,7 @@ #include "monitor/hmp.h" #include "monitor/monitor.h" #include "qemu/cutils.h" +#include "qemu/strList.h" #include "hw/core/cpu.h" #include "qapi/qmp/qdict.h" #include "qapi/error.h" @@ -176,7 +177,7 @@ static StatsFilter *stats_filter(StatsTarget target, co= nst char *names, request->provider =3D provider_idx; if (names && !g_str_equal(names, "*")) { request->has_names =3D true; - request->names =3D hmp_split_at_comma(names); + request->names =3D strList_from_string(names, ","); } QAPI_LIST_PREPEND(request_list, request); } diff --git a/util/meson.build b/util/meson.build index af3bf56..e1d1e1f 100644 --- a/util/meson.build +++ b/util/meson.build @@ -1,4 +1,5 @@ util_ss.add(files('osdep.c', 'cutils.c', 'unicode.c', 'qemu-timer-common.c= ')) +util_ss.add(files('strList.c')) util_ss.add(files('thread-context.c'), numa) if not config_host_data.get('CONFIG_ATOMIC64') util_ss.add(files('atomic64.c')) diff --git a/util/strList.c b/util/strList.c new file mode 100644 index 0000000..7991de3 --- /dev/null +++ b/util/strList.c @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2023 Red Hat, Inc. + * Copyright (c) 2022 - 2024 Oracle and/or its affiliates. + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/strList.h" + +strList *strList_from_string(const char *str, const char *delim) +{ + g_autofree char **split =3D g_strsplit(str ?: "", delim, -1); + strList *res =3D NULL; + strList **tail =3D &res; + int i; + + for (i =3D 0; split[i]; i++) { + QAPI_LIST_APPEND(tail, split[i]); + } + + return res; +} --=20 1.8.3.1 From nobody Sat Sep 21 05:31:58 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=1; a=rsa-sha256; t=1705099898; cv=none; d=zohomail.com; s=zohoarc; b=RoPpTrxXxAV1+VReR/W2nq8O+Ah+ntOyNWkYKbiIInYLCKXO/TXZLwq3CuCYaeTNOueq7E1ojWObhN3ixRPU4VVCgPrN4yxlHPdFXrhAnD/JQIkieubRlO+LJ+qB3KlBHI2aTTtMd/Fr/Fa8G5+7dywTaDwpRe2xsSVjipM092o= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1705099898; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; 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(tail) =3D &(*(tail))->next; \ } while (0) =20 +/* + * For any GenericList @list, return its length. + */ +#define QAPI_LIST_LENGTH(list) \ + ({ \ + int len =3D 0; \ + typeof(list) elem; \ + for (elem =3D list; elem !=3D NULL; elem =3D elem->next) { \ + len++; \ + } \ + len; \ + }) + #endif --=20 1.8.3.1 From nobody Sat Sep 21 05:31:58 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=1; a=rsa-sha256; t=1705099815; cv=none; d=zohomail.com; s=zohoarc; b=h27p3yPo3ioP/J9NlaO133JZ7XGnglDPpxiRvxJj29Ml5wJoqPgeX572/nbaiy15VzZjuKaKJtvfg/IrIAU14r9sA5s7rWk90Y1EmGEV+p7PtTihSZ/9FGb2xn/LP5a5w1fuasJCan42etAoro/hdzWpMw9DkUJ4DK5VJ70Aho8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1705099815; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; 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=20 +/* + * Produce and return a NULL-terminated array of strings from @args. + * The result is g_malloc'd and all strings are g_strdup'd. + */ +GStrv strv_from_strList(const strList *args); + #endif diff --git a/util/strList.c b/util/strList.c index 7991de3..bad4187 100644 --- a/util/strList.c +++ b/util/strList.c @@ -22,3 +22,17 @@ strList *strList_from_string(const char *str, const char= *delim) =20 return res; } + +GStrv strv_from_strList(const strList *args) +{ + const strList *arg; + int i =3D 0; + GStrv argv =3D g_new(char *, QAPI_LIST_LENGTH(args) + 1); + + for (arg =3D args; arg !=3D NULL; arg =3D arg->next) { + argv[i++] =3D g_strdup(arg->value); + } + argv[i] =3D NULL; + + return argv; +} --=20 1.8.3.1 From nobody Sat Sep 21 05:31:58 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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Fri, 12 Jan 2024 22:49:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=corp-2023-11-20; bh=xqkuKAWAIYI/lKX5E4irNfmDjivTSQjEtteLfuu76Cc=; b=SQvUI3WnY429tYmIeOED9vZXf87B12ZpyCUIjJ2dgnNFf4OLaAuKad4GshPsabmC3a5s HuZFYao3zFr9mJZiV9Be+/mA2YGQQSSaK/Ft2c3FtvIRpK8WHjVaWL7jDa57vwILcXwT xwMMJaHD/RIcte48SXZl/ev58p9JPg0T1xfj7ob5bD8oIEWnQSrTj0L+oOTtt1pOcYBt IX6Xfi+sBdoNL5RE1sKnlwIUOqyL0OYaMG5J5Plb/jt4HoK9ur5NauF2ECJd2kWiUh0g rqwkwzEE4CHmodYzSRFLAKl+aWPIsSwdzyTGBNz1V5eqP19Z8ITrQsfT2b08H1vOkID0 AA== From: Steve Sistare To: qemu-devel@nongnu.org Cc: Markus Armbruster , Michael Roth , Peter Xu , Fabiano Rosas , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Steve Sistare Subject: [PATCH V4 4/5] util: strList unit tests Date: Fri, 12 Jan 2024 14:49:17 -0800 Message-Id: <1705099758-211963-5-git-send-email-steven.sistare@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1705099758-211963-1-git-send-email-steven.sistare@oracle.com> References: <1705099758-211963-1-git-send-email-steven.sistare@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-12_12,2024-01-12_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 phishscore=0 mlxscore=0 spamscore=0 adultscore=0 malwarescore=0 suspectscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401120178 X-Proofpoint-GUID: WHq1c-2moRZhWosRICH9xFvVNm-Ktkvb X-Proofpoint-ORIG-GUID: WHq1c-2moRZhWosRICH9xFvVNm-Ktkvb Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.165.32; envelope-from=steven.sistare@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @oracle.com) X-ZM-MESSAGEID: 1705099845486100001 Signed-off-by: Steve Sistare Reviewed-by: Marc-Andr=C3=A9 Lureau --- tests/unit/meson.build | 1 + tests/unit/test-strList.c | 80 +++++++++++++++++++++++++++++++++++++++++++= ++++ 2 files changed, 81 insertions(+) create mode 100644 tests/unit/test-strList.c diff --git a/tests/unit/meson.build b/tests/unit/meson.build index 69f9c05..113d12e 100644 --- a/tests/unit/meson.build +++ b/tests/unit/meson.build @@ -35,6 +35,7 @@ tests =3D { 'test-rcu-simpleq': [], 'test-rcu-tailq': [], 'test-rcu-slist': [], + 'test-strList': [], 'test-qdist': [], 'test-qht': [], 'test-qtree': [], diff --git a/tests/unit/test-strList.c b/tests/unit/test-strList.c new file mode 100644 index 0000000..49a1cfd --- /dev/null +++ b/tests/unit/test-strList.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2022 - 2024 Oracle and/or its affiliates. + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/strList.h" + +static strList *make_list(int length) +{ + strList *head =3D 0, *list, **prev =3D &head; + + while (length--) { + list =3D *prev =3D g_new0(strList, 1); + list->value =3D g_strdup("aaa"); + prev =3D &list->next; + } + return head; +} + +static void test_length(void) +{ + strList *list; + int i; + + for (i =3D 0; i < 5; i++) { + list =3D make_list(i); + g_assert_cmpint(i, =3D=3D, QAPI_LIST_LENGTH(list)); + qapi_free_strList(list); + } +} + +struct { + const char *string; + const char *delim; + const char *args[5]; +} list_data[] =3D { + { 0, ",", { 0 } }, + { "", ",", { 0 } }, + { "a", ",", { "a", 0 } }, + { "a,b", ",", { "a", "b", 0 } }, + { "a,b,c", ",", { "a", "b", "c", 0 } }, + { "first last", " ", { "first", "last", 0 } }, + { "a:", ":", { "a", "", 0 } }, + { "a::b", ":", { "a", "", "b", 0 } }, + { ":", ":", { "", "", 0 } }, + { ":a", ":", { "", "a", 0 } }, + { "::a", ":", { "", "", "a", 0 } }, +}; + +static void test_strv(void) +{ + int i, j; + const char **expect; + strList *list; + GStrv args; + + for (i =3D 0; i < ARRAY_SIZE(list_data); i++) { + expect =3D list_data[i].args; + list =3D strList_from_string(list_data[i].string, list_data[i].del= im); + args =3D strv_from_strList(list); + qapi_free_strList(list); + for (j =3D 0; expect[j] && args[j]; j++) { + g_assert_cmpstr(expect[j], =3D=3D, args[j]); + } + g_assert_null(expect[j]); + g_assert_null(args[j]); + g_strfreev(args); + } +} + +int main(int argc, char **argv) +{ + g_test_init(&argc, &argv, NULL); + g_test_add_func("/test-string/length", test_length); + g_test_add_func("/test-string/strv", test_strv); + return g_test_run(); +} --=20 1.8.3.1 From nobody Sat Sep 21 05:31:58 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=1; a=rsa-sha256; t=1705099924; cv=none; d=zohomail.com; s=zohoarc; b=MWZ9qJoAByQcR250atdzd9PH+L3sv53MN7VYtInKMBjLS19aAqytNc83nlbXBQZ6CWmVgikDP/okGK5pCoDUs5UO1AtH4r9r/9QtrWMwerg0KqZ+8bZxZXsDzsnyZMu4Lwgk47ew5VXcdUi/Ahf7izA/qVgh4cOizGq5knSd1Jw= ARC-Message-Signature: i=1; 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charset="utf-8" Simplify the exec migration code by using list utility functions. As a side effect, this also fixes a minor memory leak. On function return, "g_auto(GStrv) argv" frees argv and each element, which is wrong, because the function does not own the individual elements. To compensate, the code uses g_steal_pointer which NULLs argv and prevents the destructor from running, but argv is leaked. Fixes: cbab4face57b ("migration: convert exec backend ...") Signed-off-by: Steve Sistare Reviewed-by: Fabiano Rosas --- migration/exec.c | 58 ++++++++--------------------------------------------= ---- 1 file changed, 8 insertions(+), 50 deletions(-) diff --git a/migration/exec.c b/migration/exec.c index 47d2f3b..1312ca7 100644 --- a/migration/exec.c +++ b/migration/exec.c @@ -19,12 +19,12 @@ =20 #include "qemu/osdep.h" #include "qemu/error-report.h" +#include "qemu/strList.h" #include "channel.h" #include "exec.h" #include "migration.h" #include "io/channel-command.h" #include "trace.h" -#include "qemu/cutils.h" =20 #ifdef WIN32 const char *exec_get_cmd_path(void) @@ -39,51 +39,16 @@ const char *exec_get_cmd_path(void) } #endif =20 -/* provides the length of strList */ -static int -str_list_length(strList *list) -{ - int len =3D 0; - strList *elem; - - for (elem =3D list; elem !=3D NULL; elem =3D elem->next) { - len++; - } - - return len; -} - -static void -init_exec_array(strList *command, char **argv, Error **errp) -{ - int i =3D 0; - strList *lst; - - for (lst =3D command; lst; lst =3D lst->next) { - argv[i++] =3D lst->value; - } - - argv[i] =3D NULL; - return; -} - void exec_start_outgoing_migration(MigrationState *s, strList *command, Error **errp) { - QIOChannel *ioc; - - int length =3D str_list_length(command); - g_auto(GStrv) argv =3D (char **) g_new0(const char *, length + 1); - - init_exec_array(command, argv, errp); + QIOChannel *ioc =3D NULL; + g_auto(GStrv) argv =3D strv_from_strList(command); + const char * const *args =3D (const char * const *) argv; g_autofree char *new_command =3D g_strjoinv(" ", (char **)argv); =20 trace_migration_exec_outgoing(new_command); - ioc =3D QIO_CHANNEL( - qio_channel_command_new_spawn( - (const char * const *) g_steal_pointer(&argv), - O_RDWR, - errp)); + ioc =3D QIO_CHANNEL(qio_channel_command_new_spawn(args, O_RDWR, errp)); if (!ioc) { return; } @@ -105,19 +70,12 @@ static gboolean exec_accept_incoming_migration(QIOChan= nel *ioc, void exec_start_incoming_migration(strList *command, Error **errp) { QIOChannel *ioc; - - int length =3D str_list_length(command); - g_auto(GStrv) argv =3D (char **) g_new0(const char *, length + 1); - - init_exec_array(command, argv, errp); + g_auto(GStrv) argv =3D strv_from_strList(command); + const char * const *args =3D (const char * const *) argv; g_autofree char *new_command =3D g_strjoinv(" ", (char **)argv); =20 trace_migration_exec_incoming(new_command); - ioc =3D QIO_CHANNEL( - qio_channel_command_new_spawn( - (const char * const *) g_steal_pointer(&argv), - O_RDWR, - errp)); + ioc =3D QIO_CHANNEL(qio_channel_command_new_spawn(args, O_RDWR, errp)); if (!ioc) { return; } --=20 1.8.3.1