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| author | Bram Moolenaar <Bram@vim.org> | 2017-03-19 21:20:53 +0100 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2017-03-19 21:20:53 +0100 |
| commit | 81b9d0bd5c705815e903e671e81b0b05828efd9c (patch) | |
| tree | 3e832c3269ad004ee414c81b5ddbd65ae93ad9d5 /src/os_mswin.c | |
| parent | bfd830d3e2dbd1e9b14c65625f18773074e6ac67 (diff) | |
| download | vim-git-81b9d0bd5c705815e903e671e81b0b05828efd9c.tar.gz | |
patch 8.0.0492: a failing client-server request can make Vim hangv8.0.0492
Problem: A failing client-server request can make Vim hang.
Solution: Add a timeout argument to functions that wait.
Diffstat (limited to 'src/os_mswin.c')
| -rw-r--r-- | src/os_mswin.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/os_mswin.c b/src/os_mswin.c index bddb08d92..cf8adda76 100644 --- a/src/os_mswin.c +++ b/src/os_mswin.c @@ -2401,6 +2401,7 @@ serverSendToVim( char_u **result, /* Result of eval'ed expression */ void *ptarget, /* HWND of server */ int asExpr, /* Expression or keys? */ + int timeout, /* timeout in seconds or zero */ int silent) /* don't complain about no server */ { HWND target; @@ -2444,7 +2445,7 @@ serverSendToVim( return -1; if (asExpr) - retval = serverGetReply(target, &retcode, TRUE, TRUE); + retval = serverGetReply(target, &retcode, TRUE, TRUE, timeout); if (result == NULL) vim_free(retval); @@ -2521,14 +2522,17 @@ save_reply(HWND server, char_u *reply, int expr) * if "wait" is TRUE block until a message arrives (or the server exits). */ char_u * -serverGetReply(HWND server, int *expr_res, int remove, int wait) +serverGetReply(HWND server, int *expr_res, int remove, int wait, int timeout) { int i; char_u *reply; reply_T *rep; int did_process = FALSE; + time_t start; + time_t now; /* When waiting, loop until the message waiting for is received. */ + time(&start); for (;;) { /* Reset this here, in case a message arrives while we are going @@ -2584,6 +2588,10 @@ serverGetReply(HWND server, int *expr_res, int remove, int wait) #ifdef FEAT_TIMERS check_due_timer(); #endif + time(&now); + if (timeout > 0 && (now - start) >= timeout) + break; + /* Wait for a SendMessage() call to us. This could be the reply * we are waiting for. Use a timeout of a second, to catch the * situation that the server died unexpectedly. */ |