| 1 | /* |
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| 2 | * Copyright © 2020 Endless Mobile, Inc. |
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| 3 | * |
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| 4 | * This library is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * This library is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
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| 16 | * |
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| 17 | * Author: Philip Withnall <withnall@endlessm.com> |
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| 18 | */ |
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| 19 | |
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| 20 | #pragma once |
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| 21 | |
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| 22 | #ifdef HAVE_SYSPROF |
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| 23 | #include <sysprof-capture.h> |
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| 24 | #endif |
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| 25 | |
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| 26 | #include "glib.h" |
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| 27 | |
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| 28 | G_BEGIN_DECLS |
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| 29 | |
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| 30 | /* |
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| 31 | * G_TRACE_CURRENT_TIME: |
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| 32 | * |
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| 33 | * Get the current time, in nanoseconds since the tracing epoch. This (and only |
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| 34 | * this) is suitable for passing to tracing functions like g_trace_mark(). It is |
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| 35 | * not suitable for other timekeeping. |
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| 36 | * |
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| 37 | * The tracing epoch is implementation defined, but is guaranteed to be |
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| 38 | * unchanged within the lifetime of each thread. It is not comparable across |
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| 39 | * threads or process instances. |
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| 40 | * |
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| 41 | * If tracing support is disabled, this evaluates to `0`. |
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| 42 | * |
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| 43 | * Since: 2.66 |
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| 44 | */ |
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| 45 | #ifdef HAVE_SYSPROF |
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| 46 | #define G_TRACE_CURRENT_TIME SYSPROF_CAPTURE_CURRENT_TIME |
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| 47 | #else |
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| 48 | #define G_TRACE_CURRENT_TIME 0 |
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| 49 | #endif |
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| 50 | |
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| 51 | void (g_trace_mark) (gint64 begin_time_nsec, |
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| 52 | gint64 duration_nsec, |
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| 53 | const gchar *group, |
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| 54 | const gchar *name, |
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| 55 | const gchar *message_format, |
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| 56 | ...) G_GNUC_PRINTF (5, 6); |
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| 57 | |
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| 58 | #ifndef HAVE_SYSPROF |
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| 59 | /* Optimise the whole call out */ |
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| 60 | #if defined(G_HAVE_ISO_VARARGS) |
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| 61 | #define g_trace_mark(b, d, g, n, m, ...) |
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| 62 | #elif defined(G_HAVE_GNUC_VARARGS) |
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| 63 | #define g_trace_mark(b, d, g, n, m...) |
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| 64 | #else |
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| 65 | /* no varargs macro support; the call will have to be optimised out by the compiler */ |
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| 66 | #endif |
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| 67 | #endif |
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| 68 | |
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| 69 | guint (g_trace_define_int64_counter) (const char *group, |
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| 70 | const char *name, |
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| 71 | const char *description); |
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| 72 | void (g_trace_set_int64_counter) (guint id, |
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| 73 | gint64 value); |
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| 74 | |
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| 75 | #ifndef HAVE_SYSPROF |
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| 76 | #define g_trace_define_int64_counter(g, n, d) ((guint) -1) |
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| 77 | #define g_trace_set_int64_counter(i,v) |
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| 78 | #endif |
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| 79 | |
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| 80 | G_END_DECLS |
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| 81 | |
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