// File: /workspace/github_c_makefile_star2_O2/barabo[P]advanced-shell-history/src/sqlite3.c
// Function: sqlite3_backup_init
SQLITE_API sqlite3_backup *sqlite3_backup_init(
  sqlite3* pDestDb,                     /* Database to write to */
  const char *zDestDb,                  /* Name of database within pDestDb */
  sqlite3* pSrcDb,                      /* Database connection to read from */
  const char *zSrcDb                    /* Name of database within pSrcDb */
){
  sqlite3_backup *p;                    /* Value to return */

  /* Lock the source database handle. The destination database
  ** handle is not locked in this routine, but it is locked in
  ** sqlite3_backup_step(). The user is required to ensure that no
  ** other thread accesses the destination handle for the duration
  ** of the backup operation.  Any attempt to use the destination
  ** database connection while a backup is in progress may cause
  ** a malfunction or a deadlock.
  */
  sqlite3_mutex_enter(pSrcDb->mutex);
  sqlite3_mutex_enter(pDestDb->mutex);

  if( pSrcDb==pDestDb ){
    sqlite3Error(
        pDestDb, SQLITE_ERROR, "source and destination must be distinct"
    );
    p = 0;
  }else {
    /* Allocate space for a new sqlite3_backup object...
    ** EVIDENCE-OF: R-64852-21591 The sqlite3_backup object is created by a
    ** call to sqlite3_backup_init() and is destroyed by a call to
    ** sqlite3_backup_finish(). */
    p = (sqlite3_backup *)sqlite3MallocZero(sizeof(sqlite3_backup));
    if( !p ){
      sqlite3Error(pDestDb, SQLITE_NOMEM, 0);
    }
  }

  /* If the allocation succeeded, populate the new object. */
  if( p ){
    p->pSrc = findBtree(pDestDb, pSrcDb, zSrcDb);
    p->pDest = findBtree(pDestDb, pDestDb, zDestDb);
    p->pDestDb = pDestDb;
    p->pSrcDb = pSrcDb;
    p->iNext = 1;
    p->isAttached = 0;

    if( 0==p->pSrc || 0==p->pDest || setDestPgsz(p)==SQLITE_NOMEM ){
      /* One (or both) of the named databases did not exist or an OOM
      ** error was hit.  The error has already been written into the
      ** pDestDb handle.  All that is left to do here is free the
      ** sqlite3_backup structure.
      */
      sqlite3_free(p);
      p = 0;
    }
  }
  if( p ){
    p->pSrc->nBackup++;
  }

  sqlite3_mutex_leave(pDestDb->mutex);
  sqlite3_mutex_leave(pSrcDb->mutex);
  return p;
}

// Assembly:
pushq %rbp
movq %rsp, %rbp
pushq %r15
pushq %r14
pushq %r13
pushq %r12
pushq %rbx
pushq %rax
movq %rdi, %r14
cmpq %rdi, %rdx
je 0xbd74
movq %rcx, %r13
movq %rdx, %r15
movq %rsi, %r12
pushq $0x48
popq %rdi
callq 0xbeb2
testq %rax, %rax
je 0xbd85
movq %rax, %rbx
movq %r14, %rdi
movq %r15, %rsi
movq %r13, %rdx
callq 0xbede
movq %rax, 0x28(%rbx)
movq %r14, %rdi
movq %r14, %rsi
movq %r12, %rdx
callq 0xbede
movq %rax, 0x8(%rbx)
movq %r14, (%rbx)
movq %r15, 0x20(%rbx)
movl $0x1, 0x18(%rbx)
andl $0x0, 0x3c(%rbx)
movq 0x28(%rbx), %rcx
testq %rcx, %rcx
sete %dl
testq %rax, %rax
sete %sil
orb %dl, %sil
jne 0xbd68
movq 0x8(%rcx), %rcx
movl 0x30(%rcx), %esi
pushq $-0x1
popq %rdx
movq %rax, %rdi
xorl %ecx, %ecx
callq 0x14f93
cmpl $0x7, %eax
jne 0xbda8
movq %rbx, %rdi
callq 0x9c7b
xorl %ebx, %ebx
jmp 0xbd96
leaq 0x5f6f3(%rip), %rdx     # 0x6b46e
xorl %ebx, %ebx
pushq $0x1
popq %rsi
movq %r14, %rdi
jmp 0xbd8f
xorl %ebx, %ebx
pushq $0x7
popq %rsi
movq %r14, %rdi
xorl %edx, %edx
xorl %eax, %eax
callq 0xbdb1
movq %rbx, %rax
addq $0x8, %rsp
popq %rbx
popq %r12
popq %r13
popq %r14
popq %r15
popq %rbp
retq
movq 0x28(%rbx), %rax
incl 0x18(%rax)
jmp 0xbd96