Merge adventure.(none):/home/thek/Development/cpp/bug28012/my51-bug28012

into  adventure.(none):/home/thek/Development/cpp/mysql-5.1-runtime

mysql-test/r/im_options.result

@@ -37,9 +37,10 @@ log-slow-queries	option_value
 language	option_value
 character-sets-dir	option_value
 basedir	option_value
+shutdown-delay	option_value
 skip-stack-trace	option_value
-skip-innodb	option_value
+loose-skip-innodb	option_value
-skip-ndbcluster	option_value
+loose-skip-ndbcluster	option_value
 nonguarded	option_value
 log-output	option_value
 SET mysqld2.server_id = 2;
@@ -57,9 +58,10 @@ log-slow-queries	option_value
 language	option_value
 character-sets-dir	option_value
 basedir	option_value
+shutdown-delay	option_value
 skip-stack-trace	option_value
-skip-innodb	option_value
+loose-skip-innodb	option_value
-skip-ndbcluster	option_value
+loose-skip-ndbcluster	option_value
 nonguarded	option_value
 log-output	option_value
 server_id	option_value

server-tools/instance-manager/instance.cc

@@ -524,24 +524,17 @@ bool Instance::init(const LEX_STRING *name_arg)
 
 
 /**
-  Complete instance options initialization.
+  @brief Complete instance options initialization.
 
-  SYNOPSIS
+  @return Error status.
-    complete_initialization()
+    @retval FALSE ok
-
+    @retval TRUE error
-  RETURN
-    FALSE - ok
-    TRUE  - error
 */
 
 bool Instance::complete_initialization()
 {
   configured= ! options.complete_initialization();
-  return FALSE;
+  return !configured;
-  /*
-    TODO: return actual status (from
-    Instance_options::complete_initialization()) here.
-  */
 }
 
 /**************************************************************************
@@ -644,25 +637,24 @@ bool Instance::is_mysqld_running()
 
 
 /**
-  Start mysqld.
+  @brief Start mysqld.
 
-  SYNOPSIS
+  Reset flags and start Instance Monitor thread, which will start mysqld.
-    start_mysqld()
 
-  DESCRIPTION
+  @note Instance must be locked before calling the operation.
-    Reset flags and start Instance Monitor thread, which will start mysqld.
 
-    MT-NOTE: instance must be locked before calling the operation.
+  @return Error status code
-
+    @retval FALSE Ok
-  RETURN
+    @retval TRUE Could not start instance
-    FALSE - ok
-    TRUE  - could not start instance
 */
 
 bool Instance::start_mysqld()
 {
   Instance_monitor *instance_monitor;
 
+  if (!configured)
+    return TRUE;
+
   /*
     Prepare instance to start Instance Monitor thread.
 

server-tools/instance-manager/instance_options.cc

@@ -156,7 +156,8 @@ int Instance_options::get_default_option(char *result, size_t result_len,
     goto err;
 
   /* +2 eats first "--" from the option string (E.g. "--datadir") */
-  rc= parse_output_and_get_value((char*) cmd.buffer, option_name + 2,
+  rc= parse_output_and_get_value((char*) cmd.buffer,
+                                 option_name + 2, strlen(option_name + 2),
                                  result, result_len, GET_VALUE);
 err:
   return rc;
@@ -194,8 +195,8 @@ bool Instance_options::fill_instance_version()
 
   bzero(result, MAX_VERSION_LENGTH);
 
-  if (parse_output_and_get_value((char*) cmd.buffer, "Ver", result,
+  if (parse_output_and_get_value((char*) cmd.buffer, STRING_WITH_LEN("Ver"),
-                                 MAX_VERSION_LENGTH, GET_LINE))
+                                 result, MAX_VERSION_LENGTH, GET_LINE))
   {
     log_error("Failed to get version of '%s': unexpected output.",
               (const char *) mysqld_path.str);
@@ -206,8 +207,7 @@ bool Instance_options::fill_instance_version()
 
   {
     char *start;
-    /* chop the newline from the end of the version string */
+
-    result[strlen(result) - NEWLINE_LEN]= '\0';
     /* trim leading whitespaces */
     start= result;
     while (my_isspace(default_charset_info, *start))
@@ -255,7 +255,8 @@ bool Instance_options::fill_mysqld_real_path()
 
   bzero(result, FN_REFLEN);
 
-  if (parse_output_and_get_value((char*) cmd.buffer, "Usage: ",
+  if (parse_output_and_get_value((char*) cmd.buffer,
+                                 STRING_WITH_LEN("Usage: "),
                                  result, FN_REFLEN,
                                  GET_LINE))
   {

server-tools/instance-manager/parse_output.cc

@@ -24,6 +24,13 @@
 #include "parse.h"
 #include "portability.h"
 
+/**************************************************************************
+  Private module implementation.
+**************************************************************************/
+
+namespace { /* no-indent */
+
+/*************************************************************************/
 
 void trim_space(const char **text, uint *word_len)
 {
@@ -39,90 +46,362 @@ void trim_space(const char **text, uint *word_len)
   *word_len= (end - start)+1;
 }
 
-/*
+/*************************************************************************/
-  Parse output of the given command
 
-  SYNOPSIS
+/**
-    parse_output_and_get_value()
+  @brief A facade to the internal workings of optaining the output from an
-
+  executed system process.
-    command          the command to execue with popen.
-    word             the word to look for (usually an option name)
-    result           the buffer to store the next word (option value)
-    input_buffer_len self-explanatory
-    flag             this equals to GET_LINE if we want to get all the line after
-                     the matched word and GET_VALUE otherwise.
-
-  DESCRIPTION
-
-    Parse output of the "command". Find the "word" and return the next one
-    if flag is GET_VALUE. Return the rest of the parsed string otherwise.
-
-  RETURN
-    0 - ok, the word has been found
-    1 - error occured or the word is not found
 */
 
-int parse_output_and_get_value(const char *command, const char *word,
+class Mysqld_output_parser
-                               char *result, size_t input_buffer_len,
+{
-                               uint flag)
+public:
+  Mysqld_output_parser()
+  { }
+
+  virtual ~Mysqld_output_parser()
+  { }
+
+public:
+  bool parse(const char *command,
+             const char *option_name_str,
+             uint option_name_length,
+             char *option_value_buf,
+             size_t option_value_buf_size,
+             enum_option_type option_type);
+
+protected:
+  /**
+    @brief Run a process and attach stdout- and stdin-pipes to it.
+
+    @param command The path to the process to be executed
+
+    @return Error status.
+      @retval TRUE An error occurred
+      @retval FALSE Operation was a success
+  */
+
+  virtual bool run_command(const char *command)= 0;
+
+
+  /**
+    @brief Read a sequence of bytes from the executed process' stdout pipe.
+
+    The sequence is terminated by either '\0', LF or CRLF tokens. The
+    terminating token is excluded from the result.
+
+    @param line_buffer A pointer to a character buffer
+    @param line_buffer_size The size of the buffer in bytes
+
+    @return Error status.
+      @retval TRUE An error occured
+      @retval FALSE Operation was a success
+  */
+
+  virtual bool read_line(char *line_buffer,
+                         uint line_buffer_size)= 0;
+
+
+  /**
+    @brief Release any resources needed after a execution and parsing.
+  */
+
+  virtual bool cleanup()= 0;
+};
+
+/*************************************************************************/
+
+bool Mysqld_output_parser::parse(const char *command,
+                                 const char *option_name_str,
+                                 uint option_name_length,
+                                 char *option_value_buf,
+                                 size_t option_value_buf_size,
+                                 enum_option_type option_type)
 {
-  FILE *output;
-  uint wordlen;
   /* should be enough to store the string from the output */
-  enum { MAX_LINE_LEN= 512 };
+  const int LINE_BUFFER_SIZE= 512;
-  char linebuf[MAX_LINE_LEN];
+  char line_buffer[LINE_BUFFER_SIZE];
-  int rc= 1;
 
-  wordlen= strlen(word);
+  if (run_command(command))
+    return TRUE;
 
-  /*
+  while (true)
-    Successful return of popen does not tell us whether the command has been
-    executed successfully: if the command was not found, we'll get EOF
-    when reading the output buffer below.
-  */
-  if (!(output= popen(command, "r")))
-    goto err;
-
-  /*
-    We want fully buffered stream. We also want system to
-    allocate appropriate buffer.
-  */
-  setvbuf(output, NULL, _IOFBF, 0);
-
-  while (fgets(linebuf, sizeof(linebuf) - 1, output))
   {
-    uint found_word_len= 0;
+    if (read_line(line_buffer, LINE_BUFFER_SIZE))
-    char *linep= linebuf;
-
-    linebuf[sizeof(linebuf) - 1]= '\0';        /* safety */
-
-    /*
-      Find the word(s) we are looking for in the line
-    */
-    if ((linep= strstr(linep, word)))
     {
-      /*
+      cleanup();
-        If we have found our word(s), then move linep past the word(s)
+      return TRUE;
-      */
+    }
-      linep+= wordlen;
+
-      if (flag & GET_VALUE)
+    uint found_word_len= 0;
+    char *linep= line_buffer;
+
+    line_buffer[sizeof(line_buffer) - 1]= '\0';        /* safety */
+
+    /* Find the word(s) we are looking for in the line. */
+
+    linep= strstr(linep, option_name_str);
+
+    if (!linep)
+      continue;
+
+    linep+= option_name_length;
+
+    switch (option_type)
+    {
+    case GET_VALUE:
+      trim_space((const char**) &linep, &found_word_len);
+
+      if (option_value_buf_size <= found_word_len)
       {
-        trim_space((const char**) &linep, &found_word_len);
+        cleanup();
-        if (input_buffer_len <= found_word_len)
+        return TRUE;
-          goto err;
-        strmake(result, linep, found_word_len);
       }
-      else         /* currently there are only two options */
+
-        strmake(result, linep, input_buffer_len - 1);
+      strmake(option_value_buf, linep, found_word_len);
-      rc= 0;
+
+      break;
+
+    case GET_LINE:
+      strmake(option_value_buf, linep, option_value_buf_size - 1);
+
       break;
     }
+
+    cleanup();
+
+    return FALSE;
   }
-
-  /* we are not interested in the termination status */
-  pclose(output);
-
-err:
-  return rc;
 }
 
+/**************************************************************************
+  Platform-specific implementation: UNIX.
+**************************************************************************/
+
+#ifndef __WIN__
+
+class Mysqld_output_parser_unix : public Mysqld_output_parser
+{
+public:
+  Mysqld_output_parser_unix() :
+    m_stdout(NULL)
+  { }
+
+protected:
+  virtual bool run_command(const char *command);
+
+  virtual bool read_line(char *line_buffer,
+                         uint line_buffer_size);
+
+  virtual bool cleanup();
+
+private:
+  FILE *m_stdout;
+};
+
+bool Mysqld_output_parser_unix::run_command(const char *command)
+{
+  if (!(m_stdout= popen(command, "r")))
+    return TRUE;
+
+  /*
+    We want fully buffered stream. We also want system to allocate
+    appropriate buffer.
+  */
+
+  setvbuf(m_stdout, NULL, _IOFBF, 0);
+
+  return FALSE;
+}
+
+bool Mysqld_output_parser_unix::read_line(char *line_buffer,
+                                          uint line_buffer_size)
+{
+  char *retbuff = fgets(line_buffer, line_buffer_size, m_stdout);
+  /* Remove any tailing new line charaters */
+  if (line_buffer[line_buffer_size-1] == LF)
+   line_buffer[line_buffer_size-1]= '\0';
+  return (retbuff == NULL);
+}
+
+bool Mysqld_output_parser_unix::cleanup()
+{
+  if (m_stdout)
+    pclose(m_stdout);
+
+  return FALSE;
+}
+
+#else /* Windows */
+
+/**************************************************************************
+  Platform-specific implementation: Windows.
+**************************************************************************/
+
+class Mysqld_output_parser_win : public Mysqld_output_parser
+{
+public:
+  Mysqld_output_parser_win() :
+      m_internal_buffer(NULL),
+      m_internal_buffer_offset(0),
+      m_internal_buffer_size(0)
+  { }
+
+protected:
+  virtual bool run_command(const char *command);
+  virtual bool read_line(char *line_buffer,
+                         uint line_buffer_size);
+  virtual bool cleanup();
+
+private:
+  HANDLE m_h_child_stdout_wr;
+  HANDLE m_h_child_stdout_rd;
+  uint m_internal_buffer_offset;
+  uint m_internal_buffer_size;
+  char *m_internal_buffer;
+};
+
+bool Mysqld_output_parser_win::run_command(const char *command)
+{
+  BOOL op_status;
+
+  SECURITY_ATTRIBUTES sa_attr;
+  sa_attr.nLength= sizeof(SECURITY_ATTRIBUTES);
+  sa_attr.bInheritHandle= TRUE;
+  sa_attr.lpSecurityDescriptor= NULL;
+
+  op_status= CreatePipe(&m_h_child_stdout_rd,
+                        &m_h_child_stdout_wr,
+                        &sa_attr,
+                        0 /* Use system-default buffer size. */);
+
+  if (!op_status)
+    return TRUE;
+
+  SetHandleInformation(m_h_child_stdout_rd, HANDLE_FLAG_INHERIT, 0);
+
+  STARTUPINFO si_start_info;
+  ZeroMemory(&si_start_info, sizeof(STARTUPINFO));
+  si_start_info.cb= sizeof(STARTUPINFO);
+  si_start_info.hStdError= m_h_child_stdout_wr;
+  si_start_info.hStdOutput= m_h_child_stdout_wr;
+  si_start_info.dwFlags|= STARTF_USESTDHANDLES;
+
+  PROCESS_INFORMATION pi_proc_info;
+
+  op_status= CreateProcess(NULL,           /* Application name. */
+                           (char*)command, /* Command line. */
+                           NULL,           /* Process security attributes. */
+                           NULL,           /* Primary thread security attr.*/
+                           TRUE,           /* Handles are inherited. */
+                           0,              /* Creation flags. */
+                           NULL,           /* Use parent's environment. */
+                           NULL,           /* Use parent's curr. directory. */
+                           &si_start_info, /* STARTUPINFO pointer. */
+                           &pi_proc_info); /* Rec. PROCESS_INFORMATION. */
+
+  if (!retval)
+  {
+    CloseHandle(m_h_child_stdout_rd);
+    CloseHandle(m_h_child_stdout_wr);
+
+    return TRUE;
+  }
+
+  /* Close unnessary handles. */
+
+  CloseHandle(pi_proc_info.hProcess);
+  CloseHandle(pi_proc_info.hThread);
+
+  return FALSE;
+}
+
+bool Mysqld_output_parser_win::read_line(char *line_buffer,
+                                         uint line_buffer_size)
+{
+  DWORD dw_read_count= m_internal_buffer_size;
+  bzero(line_buffer,line_buffer_size);
+  char *buff_ptr= line_buffer;
+  char ch;
+
+  while (buff_ptr - line_buffer < line_buffer_size)
+  {
+    do
+    {
+      ReadFile(m_h_child_stdout_rd, &ch,
+               1, &dw_read_count, NULL);
+    } while ((ch == CR || ch == LF) && buff_ptr == line_buffer);
+
+    if (dw_read_count == 0)
+      return TRUE;
+
+    if (ch == CR || ch == LF)
+      break;
+
+    *buff_ptr++ = ch;
+  }
+
+  return FALSE;
+}
+
+bool Mysqld_output_parser_win::cleanup()
+{
+  /* Close all handles. */
+
+  CloseHandle(m_h_child_stdout_wr);
+  CloseHandle(m_h_child_stdout_rd);
+
+  return FALSE;
+}
+#endif
+
+/*************************************************************************/
+
+} /* End of private module implementation. */
+
+/*************************************************************************/
+
+/**
+  @brief Parse output of the given command
+
+  @param      command               The command to execute.
+  @param      option_name_str       Option name.
+  @param      option_name_length    Length of the option name.
+  @param[out] option_value_buf      The buffer to store option value.
+  @param      option_value_buf_size Size of the option value buffer.
+  @param      option_type           Type of the option:
+                                      - GET_LINE if we want to get all the
+                                        line after the option name;
+                                      - GET_VALUE otherwise.
+
+  Execute the process by running "command". Find the "option name" and
+  return the next word if "option_type" is GET_VALUE. Return the rest of
+  the parsed string otherwise.
+
+  @note This function has a separate windows implementation.
+
+  @return The error status.
+    @retval FALSE Ok, the option name has been found.
+    @retval TRUE Error occured or the option name is not found.
+*/
+
+bool parse_output_and_get_value(const char *command,
+                                const char *option_name_str,
+                                uint option_name_length,
+                                char *option_value_buf,
+                                size_t option_value_buf_size,
+                                enum_option_type option_type)
+{
+#ifndef __WIN__
+  Mysqld_output_parser_unix parser;
+#else /* __WIN__ */
+  Mysqld_output_parser_win parser;
+#endif
+
+  return parser.parse(command,
+                      option_name_str,
+                      option_name_length,
+                      option_value_buf,
+                      option_value_buf_size,
+                      option_type);
+}

server-tools/instance-manager/parse_output.h

@@ -17,11 +17,17 @@
 
 #include <my_global.h>
 
-#define GET_VALUE 1
+enum enum_option_type
-#define GET_LINE  2
+{
+  GET_VALUE = 1,
+  GET_LINE
+};
 
-int parse_output_and_get_value(const char *command, const char *word,
+bool parse_output_and_get_value(const char *command,
-                               char *result, size_t input_buffer_len,
+                                const char *option_name_str,
-                               uint flag);
+                                uint option_name_length,
+                                char *option_value_buf,
+                                size_t option_value_buf_size,
+                                enum_option_type option_type);
 
 #endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_PARSE_OUTPUT_H */

server-tools/instance-manager/portability.h

@@ -48,11 +48,16 @@ typedef int pid_t;
 #define NEWLINE "\r\n"
 #define NEWLINE_LEN 2
 
+const char CR = '\r';
+const char LF = '\n';
+
 #else /* ! __WIN__ */
 
 #define NEWLINE "\n"
 #define NEWLINE_LEN 1
 
+const char LF = '\n';
+
 #endif /* __WIN__ */
 
 #endif  /* INCLUDES_MYSQL_INSTANCE_MANAGER_PORTABILITY_H */