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solana-with-rpc-optimizations
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Greg Fitzgerald 2018-12-05 10:51:50 -07:00 committed by Grimes
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24
book/src/programs.md
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@ -30,9 +30,9 @@ instruction is invalid, any changes made within the transaction are discarded.
If the program needs to store state between transactions, it does so using
*accounts*. Accounts are similar to files in operating systems such as Linux.
Like files, an account may hold arbitrary data and that data persists beyond
the lifetime of a program. Also like files, an account includes metadata that
tells the runtime who is allowed to access the data and how. Unlike files, the
Like a file, an account may hold arbitrary data and that data persists beyond
the lifetime of a program. Also like a file, an account includes metadata that
tells the runtime who is allowed to access the data and how. Unlike a file, the
account includes metadata for the lifetime of the file. That lifetime is
expressed in "tokens", which is a number of fractional native tokens, called
*lamports*. Accounts are held in validator memory and pay "rent" to stay there.
@ -40,23 +40,23 @@ Each fullnode periodically scan all accounts and collects rent. Any account
that drops to zero lamports is purged.
If an account is marked "executable", it will only be used by a *loader* to run
programs. For example, programs compiled to BPF are marked executable and
loaded by the BPF loader. No program is allowed to modify the contents of an
programs. For example, a BPF-compiled program is marked executable and loaded
by the BPF loader. No program is allowed to modify the contents of an
executable account.
Accounts also include "owner" metadata. The owner is a program ID. The runtime
grants the program write access to the account if its ID matches the owner. If
an account is not owned by a program, the program is permitted to read its data
and credit the account.
An account also includes "owner" metadata. The owner is a program ID. The
runtime grants the program write access to the account if its ID matches the
owner. If an account is not owned by a program, the program is permitted to
read its data and credit the account.
In the same way that a Linux user uses a path to look up a file, a Solana
client uses public keys to look up accounts. To create an account, the client
generates a *keypair* and registers its public key using the CreateAccount
instruction. Once registered, transactions reference account keys to grant
programs access to accounts. The runtime grants programs read access by
default. To grant write access, the client must either assign the account
to a program ID or sign the transaction using the keypair's *secret key*. Since
only the owner of the secret key can produce valid signatures matching the
default. To grant write access, the client must either assign the account to a
program or sign the transaction using the keypair's *secret key*. Since only
the holder of the secret key can produce valid signatures matching the
account's public key, the runtime recognizes the signature as authorization to
modify account data or debit the account.

8
book/src/terminology.md
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@ -96,8 +96,8 @@ the [ledger](#ledger).
#### leader schedule
A sequence of [fullnode](#fullnode) [public keys](#public-key). The cluster
uses the leader schedule to determine which fullnode is in the
[leader](#leader) at any moment in time.
uses the leader schedule to determine which fullnode is the [leader](#leader)
at any moment in time.
#### ledger
@ -111,7 +111,7 @@ height](#tick-height).
#### lockout
The duration of time in which a [fullnode](#fullnode) is unable to
The duration of time for which a [fullnode](#fullnode) is unable to
[vote](#vote) on another [fork](#fork).
#### native token
@ -208,7 +208,7 @@ A scarce, non-fungible member of a set of curios.
#### epoch
The time in which a [leader schedule](#leader-schedule) is valid.
The time for which a [leader schedule](#leader-schedule) is valid.
#### light client