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/* cmdParser.h - Command line parsing utility functions */
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/*
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* Copyright (c) 1999, 2010 Wind River Systems, Inc.
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*
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* The right to copy, distribute, modify, or otherwise make use
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* of this software may be licensed only pursuant to the terms
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* of an applicable Wind River license agreement.
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*/
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/*
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Modification history
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--------------------
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01c,13jan10,ghs vxWorks 6.9 LP64 adapting
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01b,23nov99,rcb Make KeywordMatch() function public.
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01a,01jun99,rcb First.
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*/
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/*
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DESCRIPTION
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This file includes a collection of command-line parsing functions which are
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useful in the creation of command line utilities, such as bus exercisers.
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There are three groups of functions defined by this library. The first is
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a collection of general string parser functions, such as functions to eliminate
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white space, functions to strip tokens out of a string, and so forth.
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The second set of functions drive the actual parsing process. In order to
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use this second set of functions, clients must construct a table of CMD_DESCR
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structures which define the commands to be recognized by the parser. A
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brief example of such a table is shown below.
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.CS
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CMD_DESCR commands [] =
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{
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{"Help", 4, "Help/?", "Displays list of commands.", CmdParserHelpFunc},
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{"?", 1, NULL, NULL, CmdParserHelpFunc},
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{"Exit", 4, "Exit", "Exits program.", CmdParserExitFunc},
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{NULL, 0, NULL, NULL, NULL}
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};
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.CE
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The first field is the keyword for the command. The second field specifies
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the number of characters of the command which must match - allowing the user
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to enter only a portion of the keyword as a shortcut. The third and fourth
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fields are strings giving the command usage and a brief help string. A NULL
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in the Help field indicates that the corresponding keyword is a synonym for
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another command its usage/help should not be shown. The final field is a
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pointer to a function of type CMD_EXEC_FUNC which will be invoked if the
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parser encounters the corresponding command.
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The third group of functions provide standard CMD_EXEC_FUNCs for certain
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commonly used commands, such as CmdParserHelpFunc and CmdParserExitFunc as
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shown in the preceding example.
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The caller may pass a generic (pVOID) parameter to the command line parsing
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functions in the second group. This function is in turn passed to the
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CMD_EXEC_FUNCs. In this way, the caller can specify context information
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for the command execution functions.
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Commands are executed after the user presses [enter]. Multiple commands may
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be entered on the same command line separated by semicolons (';'). Each
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command as if it had been entered on a separate line (unless a command
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terminates with an error, in which case all remaining commands entered on the
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same line will be ignored).
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*/
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#ifndef __INCcmdParserh
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#define __INCcmdParserh
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Constants */
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/* Command parser return codes */
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#define RET_OK 0 /* Normal termination */
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#define RET_ERROR 1 /* Program failure */
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#define RET_CONTINUE 2 /* Program continues looping */
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/* Prompt & input definitions */
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#define CMD_SEPARATOR ';' /* Command separator character */
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#define MAX_CMD_LEN 256 /* Maximum command length */
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#define MAX_KEYWORD_LEN 32 /* Maximum cmd keyword length */
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/* Command descriptors */
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/*
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* CMD_EXEC_FUNC
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*
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* Note: The CMD_EXEC_FUNC is expected to update the <Cmd> parameter so
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* that it points to the next character in the command line following
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* the parameters consumed by the CMD_EXEC_FUNC itself.
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*/
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typedef UINT16 (*CMD_EXEC_FUNC)
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(
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pVOID param, /* Generic parameter passed down */
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char **ppCmd, /* Ptr to remainder of cmd line */
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FILE *fin, /* stream for input (if any) */
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FILE *fout /* stream for output (if any) */
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);
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/*
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* CMD_DESCR - defines a command/keyword to be recognized by parser
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*/
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typedef struct cmd_descr
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{
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char *keyword; /* Command keyword */
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int minMatch; /* Minimum # of chars to match */
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char *usage; /* Syntax */
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char *help; /* Description string */
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CMD_EXEC_FUNC execFunc; /* Command execution function */
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} CMD_DESCR, *pCMD_DESCR;
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/* function prototypes */
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UINT16 PromptAndExecCmd
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(
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pVOID param, /* Generic parameter for exec funcs */
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char *pPrompt, /* Prompt to display */
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FILE *fin, /* Input stream */
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FILE *fout, /* Output stream */
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CMD_DESCR *pCmdTable /* CMD_DESCR table */
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);
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UINT16 ExecCmd
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(
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pVOID param, /* Generic parameter for exec funcs */
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char *pCmd, /* Cmd buffer to be parsed/executed */
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FILE *fin, /* Stream for input */
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FILE *fout, /* Stream for output */
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CMD_DESCR *pCmdTable /* CMD_DESCR table */
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);
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int KeywordMatch
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(
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char *s1, /* string 1 */
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char *s2, /* string 2 */
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int len /* max length to compare */
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);
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char *SkipSpace
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(
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char *pStr /* Input string */
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);
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UINT16 TruncSpace
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(
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char *pStr /* Input string */
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);
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char *GetNextToken
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(
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char *pStr, /* Input string */
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char *pToken, /* Bfr to receive token */
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UINT16 tokenLen /* Max length of Token bfr */
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);
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char *GetHexToken
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(
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char *pStr, /* input string */
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long *pToken, /* buffer to receive token value */
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long defVal /* default value */
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);
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UINT16 CmdParserHelpFunc
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(
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pVOID param, /* Generic parameter passed down */
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char **ppCmd, /* Ptr to remainder of cmd line */
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FILE *fin, /* stream for input (if any) */
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FILE *fout /* stream for output (if any) */
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);
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UINT16 CmdParserExitFunc
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(
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pVOID param, /* Generic parameter passed down */
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char **ppCmd, /* Ptr to remainder of cmd line */
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FILE *fin, /* stream for input (if any) */
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FILE *fout /* stream for output (if any) */
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);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCcmdParserh */
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/* End of file. */
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@@ -0,0 +1,97 @@
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/* wavFormat.h - WAV audio file format */
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/*
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* Copyright (c) 2000, 2010 Wind River Systems, Inc.
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*
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* The right to copy, distribute, modify, or otherwise make use
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* of this software may be licensed only pursuant to the terms
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* of an applicable Wind River license agreement.
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*/
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/*
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Modification history
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--------------------
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01b,13jan10,ghs vxWorks 6.9 LP64 adapting
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01a,14jan00,rcb First.
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*/
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#ifndef __INCwavFormath
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#define __INCwavFormath
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* RIFF file header */
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#define RIFF_HDR_SIG "RIFF"
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#define RIFF_HDR_SIG_LEN 4
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typedef struct riff_hdr
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{
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char signature [4]; /* identifier string = "RIFF" */
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UINT32 length; /* remaining length after this header */
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} RIFF_HDR, *pRIFF_HDR;
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/* RIFF .wav file signature */
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#define RIFF_WAV_DATA_SIG "WAVE"
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#define RIFF_WAV_DATA_SIG_LEN 4
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/* RIFF chunk header */
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#define RIFF_CHUNK_ID_LEN 4
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typedef struct riff_chunk_hdr
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{
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char chunkId [RIFF_CHUNK_ID_LEN]; /* ID of chunk */
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UINT32 length; /* remaining length after header */
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} RIFF_CHUNK_HDR, *pRIFF_CHUNK_HDR;
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/* .wav format chunk */
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#define RIFF_WAV_FMT_CHUNK_ID "fmt "
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typedef struct wav_format_chunk
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{
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UINT16 formatTag; /* format category */
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UINT16 channels; /* number of channels */
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UINT32 samplesPerSec; /* sampling rate */
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UINT32 avgBytesPerSec; /* used to estminate bfr requirements */
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UINT16 blockAlign; /* data block size */
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union
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{
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struct /* MS PCM-specific data */
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{
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UINT16 bitsPerSample; /* sample size */
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} msPcm;
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} fmt;
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} WAV_FORMAT_CHUNK, *pWAV_FORMAT_CHUNK;
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/* .wav format categories */
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#define WAV_FMT_MS_PCM 0x0001 /* Microsoft PCM */
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#define WAV_FMT_IBM_MULAW 0x0101 /* IBM mul-law */
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#define WAV_FMT_IBM_ALAW 0x0102 /* IBM a-law */
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#define WAV_FMT_IBM_ADPCM 0x0103 /* IBM AVC ADPCM */
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/* data chunk */
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#define RIFF_WAV_DATA_CHUNK_SIG "data"
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCwavFormath */
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/* End of file. */
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