diff options
Diffstat (limited to 'support/dktools/dk4strmh.c')
-rw-r--r-- | support/dktools/dk4strmh.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/support/dktools/dk4strmh.c b/support/dktools/dk4strmh.c new file mode 100644 index 0000000000..5fbc629c9c --- /dev/null +++ b/support/dktools/dk4strmh.c @@ -0,0 +1,201 @@ +/* + WARNING: This file was generated by dkct. + Changes you make here will be lost if dkct is run again! + You should modify the original source and run dkct on it. + Original source: dk4strmh.ctr +*/ + +/* +Copyright (C) 2015-2017, Dirk Krause + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. +* Redistributions in binary form must reproduce the above opyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. +* Neither the name of the author nor the names of contributors may be used + to endorse or promote products derived from this software without specific + prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. +IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/** @file dk4strmh.c The dk4strmh module. +*/ + + +#line 112 "dk4strmh.ctr" + +#include "dk4conf.h" + +#if DK4_ON_WINDOWS + +#include "dk4strmh.h" + +#ifndef DK4MEM_H_INCLUDED +#include "dk4mem.h" +#endif + +/** Low level function to access a Windows handle. + @param api The stream API structure for arguments and results. + @param wc Flag: Close handle when closing the stream. +*/ +static +void +dk4stream_windows_handle_static_function(dk4_stream_api_t *api, int wc) +{ + dk4_stream_handle_t *sh; + DWORD dwi; + DWORD dwo; + + if (NULL != api) { + api->res = 0; + api->sz_out = 0; + sh = (dk4_stream_handle_t *)(api->d); + if (NULL != sh) { + switch (api->cmd) { + case DK4_STREAM_API_READ : { + if (0 == sh->feof) { + if ((dk4_um_t)0xFFFFFFFFUL < (dk4_um_t)(api->sz_in)) { + dwi = 0xFFFFFFFFUL; + } else { + dwi = (DWORD)(api->sz_in); + } + dwo = (DWORD)0UL; + if (ReadFile(sh->ha, api->b, dwi, &dwo, NULL)) { + if ((DWORD)0UL == dwo) { sh->feof = 1; } + api->sz_out = (size_t)dwo; + if ((DWORD)0UL < dwo) { + api->res = 1; + } + } + } + } break; + case DK4_STREAM_API_WRITE : { + if ((dk4_um_t)0xFFFFFFFFUL >= (dk4_um_t)(api->sz_in)) { + dwi = (DWORD)(api->sz_in); + dwo = (DWORD)0UL; + if (WriteFile(sh->ha, api->b, dwi, &dwo, NULL)) { + api->sz_out = dwo; + if (dwo == dwi) { + api->res = 1; + } + } + } else { + /* ERROR: Size too large */ + } + } break; + case DK4_STREAM_API_FLUSH : { + api->res = 1; /* Dont know how to flush */ + } break; + case DK4_STREAM_API_AT_END : { + if (0 != sh->feof) { + api->res = 1; + } + } break; + case DK4_STREAM_API_CLOSE : { + if (0 != wc) { + if (CloseHandle(sh->ha)) { + api->res = 1; + } + } else { + api->res = 1; + } + dk4mem_free(sh); + } break; + } + } + } +} + + + +void +dk4stream_windows_handle_with_close_function(dk4_stream_api_t *api) +{ + dk4stream_windows_handle_static_function(api, 1); +} + + + +void +dk4stream_windows_handle_function(dk4_stream_api_t *api) +{ + dk4stream_windows_handle_static_function(api, 0); +} + + + +dk4_stream_t * +dk4stream_open_for_windows_handle( + HANDLE ha, + int fl, + size_t ibs, + size_t obs, + dk4_er_t *erp +) +{ + dk4_stream_handle_t *sh = NULL; + dk4_stream_t *back = NULL; + + sh = dk4mem_new(dk4_stream_handle_t,1,erp); + if (NULL != sh) { + sh->ha = ha; + sh->feof = 0; + back = dk4stream_open( + (void *)sh, dk4stream_windows_handle_function, fl, ibs, obs, erp + ); + if (NULL == back) { + dk4mem_free(sh); + } + } + return back; +} + + + +dk4_stream_t * +dk4stream_open_for_windows_handle_with_close( + HANDLE ha, + int fl, + size_t ibs, + size_t obs, + dk4_er_t *erp +) +{ + dk4_stream_handle_t *sh = NULL; + dk4_stream_t *back = NULL; + + sh = dk4mem_new(dk4_stream_handle_t,1,erp); + if (NULL != sh) { + sh->ha = ha; + sh->feof = 0; + back = dk4stream_open( + (void *)sh, dk4stream_windows_handle_with_close_function, + fl, ibs, obs, erp + ); + if (NULL == back) { + dk4mem_free(sh); + } + } + return back; +} + + + +#endif +/* if DK4_ON_WINDOWS */ + |