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<div class="textblock"><code>#include &lt;<a class="el" href="support_2port__platform_8h_source.html">grpc/support/port_platform.h</a>&gt;</code><br/>
</div>
<p><a href="cmdline_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:aaad93cd9bfc32c54fc89f7c2f3b74eb6"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a></td></tr>
<tr class="memdesc:aaad93cd9bfc32c54fc89f7c2f3b74eb6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Simple command line parser.  <a href="#aaad93cd9bfc32c54fc89f7c2f3b74eb6">More...</a><br/></td></tr>
<tr class="separator:aaad93cd9bfc32c54fc89f7c2f3b74eb6"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a31fa94e5c43847c82e90bb40087f5aa9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#a31fa94e5c43847c82e90bb40087f5aa9">gpr_cmdline_create</a> (const char *description)</td></tr>
<tr class="memdesc:a31fa94e5c43847c82e90bb40087f5aa9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Construct a command line parser: takes a short description of the tool doing the parsing.  <a href="#a31fa94e5c43847c82e90bb40087f5aa9">More...</a><br/></td></tr>
<tr class="separator:a31fa94e5c43847c82e90bb40087f5aa9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a87c433155b5df21be39818d658cfe93f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#a87c433155b5df21be39818d658cfe93f">gpr_cmdline_add_int</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl, const char *name, const char *help, int *value)</td></tr>
<tr class="memdesc:a87c433155b5df21be39818d658cfe93f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Add an integer parameter, with a name (used on the command line) and some helpful text (used in the command usage)  <a href="#a87c433155b5df21be39818d658cfe93f">More...</a><br/></td></tr>
<tr class="separator:a87c433155b5df21be39818d658cfe93f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aea1a46a5feb84307dc9e3796ca13c481"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#aea1a46a5feb84307dc9e3796ca13c481">gpr_cmdline_add_flag</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl, const char *name, const char *help, int *value)</td></tr>
<tr class="memdesc:aea1a46a5feb84307dc9e3796ca13c481"><td class="mdescLeft">&#160;</td><td class="mdescRight">The same, for a boolean flag.  <a href="#aea1a46a5feb84307dc9e3796ca13c481">More...</a><br/></td></tr>
<tr class="separator:aea1a46a5feb84307dc9e3796ca13c481"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad361141d2df046516b472df11e2712fb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#ad361141d2df046516b472df11e2712fb">gpr_cmdline_add_string</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl, const char *name, const char *help, char **value)</td></tr>
<tr class="memdesc:ad361141d2df046516b472df11e2712fb"><td class="mdescLeft">&#160;</td><td class="mdescRight">And for a string.  <a href="#ad361141d2df046516b472df11e2712fb">More...</a><br/></td></tr>
<tr class="separator:ad361141d2df046516b472df11e2712fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac3b6905c4e9c88abd4936c593b0f5b12"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#ac3b6905c4e9c88abd4936c593b0f5b12">gpr_cmdline_on_extra_arg</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl, const char *name, const char *help, void(*on_extra_arg)(void *user_data, const char *arg), void *user_data)</td></tr>
<tr class="memdesc:ac3b6905c4e9c88abd4936c593b0f5b12"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set a callback for non-named arguments.  <a href="#ac3b6905c4e9c88abd4936c593b0f5b12">More...</a><br/></td></tr>
<tr class="separator:ac3b6905c4e9c88abd4936c593b0f5b12"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a191878e568149fffade0786592d13c37"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#a191878e568149fffade0786592d13c37">gpr_cmdline_set_survive_failure</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl)</td></tr>
<tr class="memdesc:a191878e568149fffade0786592d13c37"><td class="mdescLeft">&#160;</td><td class="mdescRight">Enable surviving failure: default behavior is to exit the process.  <a href="#a191878e568149fffade0786592d13c37">More...</a><br/></td></tr>
<tr class="separator:a191878e568149fffade0786592d13c37"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acc2f66f6bcdf05c8b761419bf2d40509"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#acc2f66f6bcdf05c8b761419bf2d40509">gpr_cmdline_parse</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl, int argc, char **argv)</td></tr>
<tr class="memdesc:acc2f66f6bcdf05c8b761419bf2d40509"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parse the command line; returns 1 on success, on failure either dies (by default) or returns 0 if <a class="el" href="cmdline_8h.html#a191878e568149fffade0786592d13c37" title="Enable surviving failure: default behavior is to exit the process. ">gpr_cmdline_set_survive_failure()</a> has been called.  <a href="#acc2f66f6bcdf05c8b761419bf2d40509">More...</a><br/></td></tr>
<tr class="separator:acc2f66f6bcdf05c8b761419bf2d40509"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acfe85f2db2b17fc82e614618ce5a09a8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#acfe85f2db2b17fc82e614618ce5a09a8">gpr_cmdline_destroy</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl)</td></tr>
<tr class="memdesc:acfe85f2db2b17fc82e614618ce5a09a8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroy the parser.  <a href="#acfe85f2db2b17fc82e614618ce5a09a8">More...</a><br/></td></tr>
<tr class="separator:acfe85f2db2b17fc82e614618ce5a09a8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af9bfcaca695b8e0f84fa410f733dced5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="cmdline_8h.html#af9bfcaca695b8e0f84fa410f733dced5">gpr_cmdline_usage_string</a> (<a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *cl, const char *argv0)</td></tr>
<tr class="memdesc:af9bfcaca695b8e0f84fa410f733dced5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get a string describing usage.  <a href="#af9bfcaca695b8e0f84fa410f733dced5">More...</a><br/></td></tr>
<tr class="separator:af9bfcaca695b8e0f84fa410f733dced5"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<h2 class="groupheader">Typedef Documentation</h2>
<a class="anchor" id="aaad93cd9bfc32c54fc89f7c2f3b74eb6"></a>
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          <td class="memname">typedef struct <a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> <a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a></td>
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</div><div class="memdoc">

<p>Simple command line parser. </p>
<p>Supports flags that can be specified as -foo, &ndash;foo, &ndash;no-foo, -no-foo, etc And integers, strings that can be specified as -foo=4, -foo blah, etc</p>
<p>No support for short command line options (but we may get that in the future.)</p>
<p>Usage (for a program with a single flag argument 'foo'):</p>
<p>int main(int argc, char **argv) { gpr_cmdline *cl; int verbose = 0;</p>
<p>cl = gpr_cmdline_create("My cool tool"); gpr_cmdline_add_int(cl, "verbose", "Produce verbose output?", &amp;verbose); gpr_cmdline_parse(cl, argc, argv); gpr_cmdline_destroy(cl);</p>
<p>if (verbose) { gpr_log(GPR_INFO, "Goodbye cruel world!"); }</p>
<p>return 0; } </p>

</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="aea1a46a5feb84307dc9e3796ca13c481"></a>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_cmdline_add_flag </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
          <td class="paramname"><em>cl</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>name</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>help</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>value</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>The same, for a boolean flag. </p>

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<a class="anchor" id="a87c433155b5df21be39818d658cfe93f"></a>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_cmdline_add_int </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
          <td class="paramname"><em>cl</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>name</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>help</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>value</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Add an integer parameter, with a name (used on the command line) and some helpful text (used in the command usage) </p>

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<a class="anchor" id="ad361141d2df046516b472df11e2712fb"></a>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_cmdline_add_string </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
          <td class="paramname"><em>cl</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>name</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>help</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">char **&#160;</td>
          <td class="paramname"><em>value</em>&#160;</td>
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          <td></td>
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<p>And for a string. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a>* gpr_cmdline_create </td>
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<p>Construct a command line parser: takes a short description of the tool doing the parsing. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_cmdline_destroy </td>
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          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
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<p>Destroy the parser. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_cmdline_on_extra_arg </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
          <td class="paramname"><em>cl</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>name</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>help</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void(*)(void *user_data, const char *arg)&#160;</td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>user_data</em>&#160;</td>
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<p>Set a callback for non-named arguments. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> int gpr_cmdline_parse </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
          <td class="paramname"><em>cl</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>argc</em>, </td>
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          <td></td>
          <td class="paramtype">char **&#160;</td>
          <td class="paramname"><em>argv</em>&#160;</td>
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          <td>)</td>
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<p>Parse the command line; returns 1 on success, on failure either dies (by default) or returns 0 if <a class="el" href="cmdline_8h.html#a191878e568149fffade0786592d13c37" title="Enable surviving failure: default behavior is to exit the process. ">gpr_cmdline_set_survive_failure()</a> has been called. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_cmdline_set_survive_failure </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
          <td class="paramname"><em>cl</em></td><td>)</td>
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<p>Enable surviving failure: default behavior is to exit the process. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> char* gpr_cmdline_usage_string </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="cmdline_8h.html#aaad93cd9bfc32c54fc89f7c2f3b74eb6">gpr_cmdline</a> *&#160;</td>
          <td class="paramname"><em>cl</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>argv0</em>&#160;</td>
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          <td></td>
          <td>)</td>
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        </tr>
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<p>Get a string describing usage. </p>

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