PCIe 6.2 terms

Completion with UR / CA

    Unsupported Req / Completer Aboort 

3 methods of PCIe Error Signaling:

1. Completion Status

2. In band error messages

3. Error forwarding aka Data Poisoninga

AER: Advanced Error Reporting capabilities 

PCRC is IDE Plaintext CRC

SpaceStation14 Development with MacOS on MacBook M1

 

Content.IntegrationTests/Tests/GameObjects/Components/EntityPrototypeComponentsTest.cs:            var paths = sResourceManager.ContentFindFiles(prototypePath)

Content.IntegrationTests/Tests/GameObjects/Components/EntityPrototypeComponentsTest.cs:                var file = sResourceManager.ContentFileRead(path);

Updated "Why I believe" for Computer82 Happiness Group

 Originally written Feb 2008

Why I Believe

It seems that my life has been a turbulent journey, full of inner struggles.

I was born in 1967 -- the year Mao's Culture Revolution began. A few days after my birth, the warring Red Guard factions forced Mother to flee the hospital with me in her bosom.

Culture Revolution came hard on my parents, for the simple reason that my grandparents were political prisoners affiliated with KMT. My parents were treated harshly by the local Red Guards. I still recall that, as soon as I began to perceive emotions, I sensed a constant, hovering, thickening layer of stressful, inferior and hopeless feelings projected from my father to me. I was a survivor at 5 or 6, so before long I learnt to take refuge in books and fantasies, my favorite been Andersson Fairy Tales and Asimov Science fictions, not to mention poetry by 泰戈尔（Rabindranath Tagore). Looking back, it was mom's love and strength, plus the relief from books and fantasies that my own budding inner world could develop before the harsh environment suffocated it. At that point, I sworn to myself to grow up a man of character strength and moral goodness. My dream was to escape from the totalitarian system to a free world. I thought that if I live in a free society, is well educated and have lots of money, I can realize my dreams.

My intellectual adventures led me, somehow, out of the deprived oppressive environment -- thanks to my father's upbringing, my mother's loving nurture and helps from teachers and friends. I did fulfill the three conditions: freedom education and a decent income. Yet, I seem to have discovered on myself more and more character flaws and moral weakness. How come? I was baffled. I tried to find answers in behavioral science, self-help books and psychology. But it seems to be a quicksand in which my soul was drowning. No kidding, I was deeply troubled, depressed, losing hope.

Besides books and philosophy, I also tried sports: triathlon, half marathon, winter triathlon. They gave me temporary thrills but no lasting answers.

I became more disappointed of myself. My self-esteem began sinking lower and lower in the quicksand. I sought help from a psychological counseling. A lady named Cynthia provided a good deal of much appreciated clinical help. But the real question was un-answered. I began to lose purpose and losing it quickly. I was at my wit's end, unable to sit up in the quicksand.

One day I went to a wedding banquet and met a United Church minister, Rev Wing Mak. He challenged me to turn my eyes to Bible. Prior to that I was drawn to Bible study while attending graduate school in Vancouver. Rev Mak was very nice to me. He filled to some extent a father-like role at that point when my father had been far away, distance-wise, and, more acutely, emotion-wise. Overtime, to my delight I found that reading Bible seemed to make my inner world clear. I learnt that I am one of the sinners made in divine image whom GOd is ready to forgive and take back. This explained why I was foolish to rely on my strength to achieve moral goodness. When I read Bible, not only were there instructions beaching me how to deal with daily practical problems (like re-connect with my estranged father). The mystery of the Bible seemed to be able to bring strange unexplainable joy and peace to my inner self. Joy and peace, how precious to a man in depression! I used to get up every morning, reading Psalm 143 and plea God: may each morning bring me, word of your unfailing love!

Surprisingly, much of my prayers got answered, so in keeping up with my side of the bargain, I somewhat reluctantly submitted to Jesus.

A small act of submission to Jesus brought new life. Trust and obey, there is no other way, to be happy in Jesus, but trust and obey,

Bible taught me the purpose of life. Rather than relying on my own to become righteous, it is better to trust in the Creator's plan and submit to Jesus for the redemption of my sins. There trully were abundant life when I participate in the worthy cause of being Christ's disciple. Live in Christ is a meaningful one. I only regret that I didn't come to the cross sooner.

C++ Value Categories: each C++ expression has a type and a value category - one of prvalue (pure right value), xvalue (eXpiring value) or lvaue (left value)

So much has changed in C++ semantics.

Each C++ expression (an operator with its operands, a literal, a variable name, etc.) is characterized by two independent properties: a type and a value category. Each expression has some non-reference type, and each expression belongs to exactly one of the three primary value categories: prvalue, xvalue, and lvalue.

• a glvalue (“generalized” lvalue) is an expression whose evaluation determines the identity of an object, bit-field, or function;
• a prvalue (“pure” rvalue) is an expression whose evaluation either

computes a value that is not associated with an object creates a temporary object and denotes it

(until C++17)

computes the value of the operand of an operator or is a void expression (such prvalue has no result object), or initializes an object or a bit-field (such prvalue is said to have a result object). With the exception of decltype, all class and array prvalues have a result object even if it is discarded. The result object may be a variable, an object created by new-expression, a temporary created by temporary materialization, or a member thereof;

(since C++17)

• an xvalue (an “eXpiring” value) is a glvalue that denotes an object or bit-field whose resources can be reused;
• an lvalue (so-called, historically, because lvalues could appear on the left-hand side of an assignment expression) is a glvalue that is not an xvalue;
• an rvalue (so-called, historically, because rvalues could appear on the right-hand side of an assignment expression) is a prvalue or an xvalue.

Note: this taxonomy went through significant changes with past C++ standard revisions

Example xvalue:

xvalue

The following expressions are xvalue expressions:

• a function call or an overloaded operator expression, whose return type is rvalue reference to object, such as std::move(x);
• a[n], the built-in subscript expression, where one operand is an array rvalue;

Why a new architecture for OpenSLL starting OpenSSL 5.0?

Do not  understand https://www.openssl.org/docs/OpenSSLStrategicArchitecture.html

Powerful New Tracing Tool: uftrace

The previous blog is confirmed by tracing command "openssl cms *".

This blog summarize the usage:

1. apt install uftrace
2. compile version 3.0.0-alpha4 openssl with flag -pg
3. Trace files will be in ufrace.data/ folder
4. Parse the output by:
1. download the uftrace profile data to path/to/project/ufrace.data/, the cd to path/to/project and invoke: uftrace replay.
   

uftrace record --nest-libcall ../openssl-cmake/build/usr/local/bin/openssl cms -cades -sign -in assertion_store.json\
	-signer "rsa.signed_pub.pem"\
	-inkey rsa.pem\
	-outform DER -out signed_claim.p7s

And openssl CMS_sign has similar documentaitons. Not as easy as Win32 CryptoSignMessage() but high quality non-the-less

https://www.openssl.org/docs/manmaster/man3/CMS_sign.html

1. At line 54355, we invoke CMS_sign() with two flags: CMS_DETACHED | CMS_PARTIAL.

   1. CMS_PARTIAL is required otherwise the manpage for CMS_sign() says SHA1 will be invoked to hash over claim_bio

2. We invoke cms_add1_signer() (line 74943, col 31 )

   1. Which seems to call, at #146127 (col 62) call “cms_add1_signing_cert_v2()” . This will support CAdES-B format.

3. Finally we invoke, at #147594: CMS_final()