[PATCH 0/1] MR10005: Draft: [RFC] server: Add option to return ticks since wineserver start.

[Bernhard Übelacker (＠bernhardu)]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=59287

- Unsure if there is a better way to make this configurable?

- Is adding the message to GetTickCount ok for performance reasons?
  How can a user be better warned if they have an uptime above 25 days
  and their application uses this Api?

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10005

[PATCH 1/1] Draft: server: Add option to return ticks since wineserver start.

[Bernhard Übelacker]

From: Bernhard Übelacker <[e-mail]>

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=59287

- Unsure if there is a better way to make this configurable?

- Is adding the message to GetTickCount ok for performance reasons?
  How can a user be better warned if they have an uptime above 25 days
  and their application uses this Api?
---
 dlls/kernel32/sync.c | 12 +++++++++++-
 server/main.c        |  8 +++++++-
 server/object.h      |  1 +
 server/request.c     |  7 ++++---
 4 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/dlls/kernel32/sync.c b/dlls/kernel32/sync.c
index b354b1c5653..35fc00a29da 100644
--- a/dlls/kernel32/sync.c
+++ b/dlls/kernel32/sync.c
@@ -101,8 +101,18 @@ ULONGLONG WINAPI DECLSPEC_HOTPATCH GetTickCount64(void)
  */
 DWORD WINAPI DECLSPEC_HOTPATCH GetTickCount(void)
 {
+    DWORD ret;
+    static int once;
     /* note: we ignore TickCountMultiplier */
-    return user_shared_data->TickCount.LowPart;
+    ret = user_shared_data->TickCount.LowPart;
+    if ((ret & 0x80000000) && !once)
+    {
+        once = 1;
+        MESSAGE("The value returning from GetTickCount excceeds the signed integer maximum, "
+                "which may make some applications fail. "
+                "Consider using the wineserver option --serverboottime.\n");
+    }
+    return ret;
 }
 
 /***********************************************************************
diff --git a/server/main.c b/server/main.c
index 46419a09cb4..64315d48688 100644
--- a/server/main.c
+++ b/server/main.c
@@ -46,6 +46,7 @@ int debug_level = 0;
 int foreground = 0;
 timeout_t master_socket_timeout = 3 * -TICKS_PER_SEC;  /* master socket timeout, default is 3 seconds */
 const char *server_argv0;
+int serverboottime = 0;
 
 /* parse-line args */
 
@@ -60,6 +61,7 @@ static void usage( FILE *fh )
     fprintf(fh, "   -p[n], --persistent[=n]  make server persistent, optionally for n seconds\n");
     fprintf(fh, "   -v,    --version         display version information and exit\n");
     fprintf(fh, "   -w,    --wait            wait until the current wineserver terminates\n");
+    fprintf(fh, "   -s,    --serverboottime  return ticks from start of wineserver\n");
     fprintf(fh, "\n");
 }
 
@@ -94,6 +96,9 @@ static void option_callback( int optc, char *optarg )
         else
             master_socket_timeout = TIMEOUT_INFINITE;
         break;
+    case 's':
+        serverboottime = 1;
+        break;
     case 'v':
         fprintf( stderr, "%s\n", PACKAGE_STRING );
         exit(0);
@@ -120,6 +125,7 @@ static struct long_option
     {"persistent",  2, 'p'},
     {"version",     0, 'v'},
     {"wait",        0, 'w'},
+    {"serverboottime", 0, 's'},
     { NULL }
 };
 
@@ -245,7 +251,7 @@ int main( int argc, char *argv[] )
 {
     setvbuf( stderr, NULL, _IOLBF, 0 );
     server_argv0 = argv[0];
-    parse_options( argc, argv, "d::fhk::p::vw", long_options, option_callback );
+    parse_options( argc, argv, "d::fhk::p::vws", long_options, option_callback );
 
     /* setup temporary handlers before the real signal initialization is done */
     signal( SIGPIPE, SIG_IGN );
diff --git a/server/object.h b/server/object.h
index cab8ad25a59..6199643d772 100644
--- a/server/object.h
+++ b/server/object.h
@@ -343,6 +343,7 @@ extern int debug_level;
 extern int foreground;
 extern timeout_t master_socket_timeout;
 extern const char *server_argv0;
+extern int serverboottime;
 
   /* server start time used for GetTickCount() */
 extern timeout_t server_start_time;
diff --git a/server/request.c b/server/request.c
index 432a5918892..4bd7fb8745b 100644
--- a/server/request.c
+++ b/server/request.c
@@ -512,14 +512,15 @@ timeout_t monotonic_counter(void)
     static mach_timebase_info_data_t timebase;
 
     if (!timebase.denom) mach_timebase_info( &timebase );
-    return mach_continuous_time() * timebase.numer / timebase.denom / 100;
+    if (!serverboottime)
+        return mach_continuous_time() * timebase.numer / timebase.denom / 100;
 #elif defined(HAVE_CLOCK_GETTIME)
     struct timespec ts;
 #ifdef CLOCK_BOOTTIME
-    if (!clock_gettime( CLOCK_BOOTTIME, &ts ))
+    if (!serverboottime && !clock_gettime( CLOCK_BOOTTIME, &ts ))
         return (timeout_t)ts.tv_sec * TICKS_PER_SEC + ts.tv_nsec / 100;
 #endif
-    if (!clock_gettime( CLOCK_MONOTONIC, &ts ))
+    if (!serverboottime && !clock_gettime( CLOCK_MONOTONIC, &ts ))
         return (timeout_t)ts.tv_sec * TICKS_PER_SEC + ts.tv_nsec / 100;
 #endif
     return current_time - server_start_time;
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/10005

[Konstantin Demin (＠rockdrilla)]

I'd propose changes in `server/request.c` in following way:
```diff
--- a/server/request.c
+++ a/server/request.c
 /* return a monotonic time counter */
 timeout_t monotonic_counter(void)
 {
+    if (serverboottime) return current_time - server_start_time;
     #ifdef __APPLE__
     static mach_timebase_info_data_t timebase;
 
```

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10005#note_128524