Add --report-mem-usage option for debugging/testing

include/qpdf/QPDFJob.hh

@@ -711,6 +711,7 @@ class QPDFJob
         bool json_input;
         bool json_output;
         std::string update_from_json;
+        bool report_mem_usage;
     };
     std::shared_ptr<Members> m;
 };

include/qpdf/auto_job_c_main.hh

@@ -33,6 +33,7 @@ QPDF_DLL Config* qdf();
 QPDF_DLL Config* rawStreamData();
 QPDF_DLL Config* recompressFlate();
 QPDF_DLL Config* removePageLabels();
+QPDF_DLL Config* reportMemUsage();
 QPDF_DLL Config* requiresPassword();
 QPDF_DLL Config* showEncryption();
 QPDF_DLL Config* showEncryptionKey();

job.sums

@@ -3,15 +3,15 @@ generate_auto_job 9abe2ec994fb98526f5e3c0c199ce2e61a868463cb522a5bc6e9730b655341
 include/qpdf/auto_job_c_att.hh 4c2b171ea00531db54720bf49a43f8b34481586ae7fb6cbf225099ee42bc5bb4
 include/qpdf/auto_job_c_copy_att.hh 50609012bff14fd82f0649185940d617d05d530cdc522185c7f3920a561ccb42
 include/qpdf/auto_job_c_enc.hh 28446f3c32153a52afa239ea40503e6cc8ac2c026813526a349e0cd4ae17ddd5
-include/qpdf/auto_job_c_main.hh cdba1ae6ea5525a585d10a3dd95b7996d62b17de4211fe658b78d9d463b0f313
+include/qpdf/auto_job_c_main.hh 493b9798f5ff8bbcb07c0238693554d77eefa4ae71ce1a0d466de94e3a7a3966
 include/qpdf/auto_job_c_pages.hh b3cc0f21029f6d89efa043dcdbfa183cb59325b6506001c18911614fe8e568ec
 include/qpdf/auto_job_c_uo.hh ae21b69a1efa9333050f4833d465f6daff87e5b38e5106e49bbef5d4132e4ed1
-job.yml f9564f18b08a45d17328af43652645771d3498471820c858b8c9013a193e1412
+job.yml a6f22d425980ed960c77c0a4197f46924c14e7943358cd9f0b75811bb1c480ad
 libqpdf/qpdf/auto_job_decl.hh 7844eba58edffb9494b19e8eca6fd59a24d6e152ca606c3b07da569f753df2da
-libqpdf/qpdf/auto_job_help.hh 53306e4aef8aaca641c0087bc9e064ada1c44a94b826c0bcac7b4eb0c8c41fd5
-libqpdf/qpdf/auto_job_init.hh fd1635a5ad6ba16b7ae008467145560a59a5ecfd10d29c5ef7cd0d8347747cd2
+libqpdf/qpdf/auto_job_help.hh 3e9385a7e0dae993467647466fa30f30baa5968f9270c73ff4e664f5aa415dbe
+libqpdf/qpdf/auto_job_init.hh ccb881733849dff5c05721f1aa5c35447cedd415e881c3fef6573901e45be056
 libqpdf/qpdf/auto_job_json_decl.hh 06caa46eaf71db8a50c046f91866baa8087745a9474319fb7c86d92634cc8297
-libqpdf/qpdf/auto_job_json_init.hh 59545578a2e47c660ff98516ed53f06638be75eb4658e2a09d32cc08e0cb7268
-libqpdf/qpdf/auto_job_schema.hh 5352ef1be1ad7cc6f4f36dab88f2937d278e6bd3a0e2d46259794dc226c8ba6b
+libqpdf/qpdf/auto_job_json_init.hh 7ac8f42fb39eda56144ab62b30152a56e9bb2224d0596eb826b7bc421a78d26b
+libqpdf/qpdf/auto_job_schema.hh 17352791b09c3b8a8db766375cce31d70c98b67b44ecc398e2ac78984e34fe90
 manual/_ext/qpdf.py 6add6321666031d55ed4aedf7c00e5662bba856dfcd66ccb526563bffefbb580
-manual/cli.rst 41ee93f23f46160fe9eaf7c99fd2ab3bd2e0f6792a341a35bdac1a41cb853ed5
+manual/cli.rst e3fa48bb30c981df1f74d474887155cd6a46f9010b91cd1b7b57e582bf3bf877

job.yml

@@ -127,6 +127,7 @@ options:
       - recompress-flate
       - remove-page-labels
       - replace-input
+      - report-mem-usage
       - requires-password
       - show-encryption
       - show-encryption-key
@@ -413,6 +414,7 @@ json:
       Pages.password:
       _range: "page range"
   remove-page-labels:
+  report-mem-usage:
   rotate:
   overlay:
     _file: "source file for overlay"

libqpdf/QPDFJob.cc

@@ -417,7 +417,8 @@ QPDFJob::Members::Members() :
     check_is_encrypted(false),
     check_requires_password(false),
     json_input(false),
-    json_output(false)
+    json_output(false),
+    report_mem_usage(false)
 {
 }
 
@@ -625,6 +626,14 @@ QPDFJob::run()
                                      << ": operation succeeded with warnings\n";
         }
     }
+    if (m->report_mem_usage) {
+        // Call get_max_memory_usage before generating output. When
+        // debugging, it's easier if print statements from
+        // get_max_memory_usage are not interleaved with the output.
+        auto mem_usage = QUtil::get_max_memory_usage();
+        *this->m->log->getWarn()
+            << "qpdf-max-memory-usage " << mem_usage << "\n";
+    }
 }
 
 bool

libqpdf/QPDFJob_config.cc

@@ -502,6 +502,13 @@ QPDFJob::Config::removePageLabels()
     return this;
 }
 
+QPDFJob::Config*
+QPDFJob::Config::reportMemUsage()
+{
+    o.m->report_mem_usage = true;
+    return this;
+}
+
 QPDFJob::Config*
 QPDFJob::Config::requiresPassword()
 {

libqpdf/qpdf/auto_job_help.hh

@@ -883,6 +883,9 @@ for debugging qpdf.
 ap.addOptionHelp("--test-json-schema", "testing", "test generated json against schema", R"(This is used by qpdf's test suite to check consistency between
 the output of qpdf --json and the output of qpdf --json-help.
 )");
+ap.addOptionHelp("--report-mem-usage", "testing", "best effort report of memory usage", R"(This is used by qpdf's performance test suite to report the
+maximum amount of memory used in supported environments.
+)");
 }
 static void add_help(QPDFArgParser& ap)
 {

libqpdf/qpdf/auto_job_init.hh

@@ -69,6 +69,7 @@ this->ap.addBare("raw-stream-data", [this](){c_main->rawStreamData();});
 this->ap.addBare("recompress-flate", [this](){c_main->recompressFlate();});
 this->ap.addBare("remove-page-labels", [this](){c_main->removePageLabels();});
 this->ap.addBare("replace-input", b(&ArgParser::argReplaceInput));
+this->ap.addBare("report-mem-usage", [this](){c_main->reportMemUsage();});
 this->ap.addBare("requires-password", [this](){c_main->requiresPassword();});
 this->ap.addBare("show-encryption", [this](){c_main->showEncryption();});
 this->ap.addBare("show-encryption-key", [this](){c_main->showEncryptionKey();});

libqpdf/qpdf/auto_job_json_init.hh

@@ -409,6 +409,9 @@ popHandler(); // key: pages
 pushKey("removePageLabels");
 addBare([this]() { c_main->removePageLabels(); });
 popHandler(); // key: removePageLabels
+pushKey("reportMemUsage");
+addBare([this]() { c_main->reportMemUsage(); });
+popHandler(); // key: reportMemUsage
 pushKey("rotate");
 addParameter([this](std::string const& p) { c_main->rotate(p); });
 popHandler(); // key: rotate

libqpdf/qpdf/auto_job_schema.hh

@@ -144,6 +144,7 @@ static constexpr char const* JOB_SCHEMA_DATA = R"({
     }
   ],
   "removePageLabels": "remove explicit page numbers",
+  "reportMemUsage": "best effort report of memory usage",
   "rotate": "rotate pages",
   "overlay": {
     "file": "source file for overlay",

manual/cli.rst

@@ -3463,6 +3463,16 @@ Related Options
    memory and is therefore unsuitable for use with large files. This
    is why it's also not on by default.
 
+.. qpdf:option:: --report-mem-usage
+
+   .. help: best effort report of memory usage
+
+      This is used by qpdf's performance test suite to report the
+      maximum amount of memory used in supported environments.
+
+   This is used by qpdf's performance test suite to report the maximum
+   amount of memory used in supported environments.
+
 .. _unicode-passwords:
 
 Unicode Passwords