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([2804:1b3:a7c0:80ff:89a7:2ddb:21db:5421]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2dbb9c4f447sm1813440a91.6.2024.09.13.07.22.41 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Sep 2024 07:22:42 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 1/2] support: Make support_process_state_wait return the found state Date: Fri, 13 Sep 2024 11:21:51 -0300 Message-ID: <20240913142239.2949727-1-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-Spam-Status: No, score=-12.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces~patch=linaro.org@sourceware.org So caller can check which state was found if multiple ones are asked. Checked on x86_64-linux-gnu. Reviewed-by: Florian Weimer --- support/process_state.h | 7 +++++-- support/support_process_state.c | 6 ++++-- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/support/process_state.h b/support/process_state.h index 1cf902e91b..9541d8c343 100644 --- a/support/process_state.h +++ b/support/process_state.h @@ -31,13 +31,16 @@ enum support_process_state support_process_state_dead = 0x20, /* X (dead). */ support_process_state_zombie = 0x40, /* Z (zombie). */ support_process_state_parked = 0x80, /* P (parked). */ + support_process_state_invalid = 0x100 /* Invalid state. */ }; /* Wait for process PID to reach state STATE. It can be a combination of multiple possible states ('process_state_running | process_state_sleeping') where the function return when any of these state are observed. For an invalid state not represented by SUPPORT_PROCESS_STATE, it fallbacks - to a 2 second sleep. */ -void support_process_state_wait (pid_t pid, enum support_process_state state); + to a 2 second sleep. + Return the found process state. */ +enum support_process_state +support_process_state_wait (pid_t pid, enum support_process_state state); #endif diff --git a/support/support_process_state.c b/support/support_process_state.c index 062335234f..ae8e0a531c 100644 --- a/support/support_process_state.c +++ b/support/support_process_state.c @@ -27,7 +27,7 @@ #include #include -void +enum support_process_state support_process_state_wait (pid_t pid, enum support_process_state state) { #ifdef __linux__ @@ -75,7 +75,7 @@ support_process_state_wait (pid_t pid, enum support_process_state state) { free (line); xfclose (fstatus); - return; + return process_states[i].s; } rewind (fstatus); @@ -90,4 +90,6 @@ support_process_state_wait (pid_t pid, enum support_process_state state) /* Fallback to nanosleep if an invalid state is found. */ #endif nanosleep (&(struct timespec) { 1, 0 }, NULL); + + return support_process_state_invalid; }